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_product13.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-673a906-m [2019-10-02 13:03:43,583 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-02 13:03:43,585 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-02 13:03:43,597 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-02 13:03:43,598 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-02 13:03:43,599 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-02 13:03:43,600 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-02 13:03:43,602 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-02 13:03:43,603 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-02 13:03:43,604 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-02 13:03:43,605 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-02 13:03:43,606 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-02 13:03:43,607 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-02 13:03:43,608 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-02 13:03:43,609 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-02 13:03:43,610 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-02 13:03:43,611 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-02 13:03:43,612 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-02 13:03:43,613 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-02 13:03:43,616 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-02 13:03:43,617 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-02 13:03:43,618 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-02 13:03:43,620 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-02 13:03:43,620 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-02 13:03:43,623 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-02 13:03:43,623 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-02 13:03:43,624 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-02 13:03:43,625 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-02 13:03:43,625 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-02 13:03:43,626 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-02 13:03:43,627 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-02 13:03:43,627 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-02 13:03:43,628 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-02 13:03:43,629 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-02 13:03:43,630 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-02 13:03:43,630 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-02 13:03:43,631 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-02 13:03:43,631 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-02 13:03:43,631 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-02 13:03:43,632 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-02 13:03:43,633 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-02 13:03:43,634 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-02 13:03:43,648 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-02 13:03:43,649 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-02 13:03:43,650 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-02 13:03:43,650 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-02 13:03:43,650 INFO L138 SettingsManager]: * Use SBE=true [2019-10-02 13:03:43,651 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-02 13:03:43,651 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-02 13:03:43,651 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-02 13:03:43,651 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-02 13:03:43,651 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-02 13:03:43,652 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-02 13:03:43,652 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-02 13:03:43,652 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-02 13:03:43,652 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-02 13:03:43,652 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-02 13:03:43,653 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-02 13:03:43,653 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-02 13:03:43,653 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-02 13:03:43,653 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-02 13:03:43,653 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-02 13:03:43,654 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-02 13:03:43,654 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-02 13:03:43,654 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-02 13:03:43,654 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-02 13:03:43,655 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-02 13:03:43,655 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-02 13:03:43,655 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-02 13:03:43,655 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-02 13:03:43,655 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-02 13:03:43,684 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-02 13:03:43,700 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-02 13:03:43,709 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-02 13:03:43,711 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-02 13:03:43,718 INFO L275 PluginConnector]: CDTParser initialized [2019-10-02 13:03:43,719 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec27_product13.cil.c [2019-10-02 13:03:43,784 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/08d7fef49/2892108069904da398ec06d7440a9cf1/FLAGa6f809ed4 [2019-10-02 13:03:44,389 INFO L306 CDTParser]: Found 1 translation units. [2019-10-02 13:03:44,391 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec27_product13.cil.c [2019-10-02 13:03:44,422 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/08d7fef49/2892108069904da398ec06d7440a9cf1/FLAGa6f809ed4 [2019-10-02 13:03:44,609 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/08d7fef49/2892108069904da398ec06d7440a9cf1 [2019-10-02 13:03:44,620 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-02 13:03:44,621 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-02 13:03:44,622 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-02 13:03:44,622 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-02 13:03:44,626 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-02 13:03:44,627 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.10 01:03:44" (1/1) ... [2019-10-02 13:03:44,632 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f0fe398 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 01:03:44, skipping insertion in model container [2019-10-02 13:03:44,632 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.10 01:03:44" (1/1) ... [2019-10-02 13:03:44,639 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-02 13:03:44,723 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-02 13:03:45,513 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-02 13:03:45,538 INFO L188 MainTranslator]: Completed pre-run [2019-10-02 13:03:45,706 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-02 13:03:45,788 INFO L192 MainTranslator]: Completed translation [2019-10-02 13:03:45,788 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 01:03:45 WrapperNode [2019-10-02 13:03:45,789 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-02 13:03:45,789 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-02 13:03:45,790 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-02 13:03:45,790 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-02 13:03:45,805 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 01:03:45" (1/1) ... [2019-10-02 13:03:45,805 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 01:03:45" (1/1) ... [2019-10-02 13:03:45,837 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 01:03:45" (1/1) ... [2019-10-02 13:03:45,838 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 01:03:45" (1/1) ... [2019-10-02 13:03:45,891 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 01:03:45" (1/1) ... [2019-10-02 13:03:45,916 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 01:03:45" (1/1) ... [2019-10-02 13:03:45,928 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 01:03:45" (1/1) ... [2019-10-02 13:03:45,946 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-02 13:03:45,946 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-02 13:03:45,946 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-02 13:03:45,947 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-02 13:03:45,948 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 01:03:45" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-02 13:03:46,060 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-02 13:03:46,061 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-02 13:03:46,061 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-02 13:03:46,061 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-02 13:03:46,063 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-02 13:03:46,063 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-02 13:03:46,063 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-02 13:03:46,064 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-02 13:03:46,065 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-02 13:03:46,065 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-02 13:03:46,065 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-02 13:03:46,066 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-02 13:03:46,067 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-02 13:03:46,067 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-02 13:03:46,068 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-02 13:03:46,069 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Sign [2019-10-02 13:03:46,071 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-02 13:03:46,071 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-02 13:03:46,071 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-02 13:03:46,072 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-02 13:03:46,072 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-02 13:03:46,072 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-02 13:03:46,073 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-02 13:03:46,073 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-02 13:03:46,073 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-10-02 13:03:46,073 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-02 13:03:46,073 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-02 13:03:46,074 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-02 13:03:46,074 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-02 13:03:46,074 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-02 13:03:46,074 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-02 13:03:46,074 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-02 13:03:46,075 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-02 13:03:46,075 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-02 13:03:46,075 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-02 13:03:46,076 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-02 13:03:46,076 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-02 13:03:46,076 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-02 13:03:46,076 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-02 13:03:46,076 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-02 13:03:46,076 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-02 13:03:46,077 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-02 13:03:46,077 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-02 13:03:46,077 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-02 13:03:46,077 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-02 13:03:46,077 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-02 13:03:46,078 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-02 13:03:46,079 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-02 13:03:46,079 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-02 13:03:46,079 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-02 13:03:46,079 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-02 13:03:46,080 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-02 13:03:46,080 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-02 13:03:46,080 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-02 13:03:46,080 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-02 13:03:46,081 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-02 13:03:46,081 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-02 13:03:46,082 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-02 13:03:46,082 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-02 13:03:46,082 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-02 13:03:46,082 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-02 13:03:46,083 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-02 13:03:46,083 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-02 13:03:46,083 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-02 13:03:46,084 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-02 13:03:46,084 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-02 13:03:46,084 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-02 13:03:46,084 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-02 13:03:46,085 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-02 13:03:46,085 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-02 13:03:46,086 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-02 13:03:46,086 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-02 13:03:46,086 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-02 13:03:46,086 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-02 13:03:46,087 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-02 13:03:46,088 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-02 13:03:46,088 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-02 13:03:46,088 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-02 13:03:46,089 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-02 13:03:46,089 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-02 13:03:46,089 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-02 13:03:46,090 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-02 13:03:46,091 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-02 13:03:46,091 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-02 13:03:46,091 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__VerifyForward_spec__1 [2019-10-02 13:03:46,091 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-02 13:03:46,091 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-02 13:03:46,092 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-02 13:03:46,092 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-02 13:03:46,093 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-02 13:03:46,093 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-02 13:03:46,094 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-02 13:03:46,094 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-02 13:03:46,094 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-02 13:03:46,094 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-02 13:03:46,094 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-02 13:03:46,094 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-02 13:03:46,095 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-02 13:03:46,095 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-02 13:03:46,095 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-02 13:03:46,095 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-02 13:03:46,095 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-02 13:03:46,096 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-02 13:03:46,096 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-02 13:03:46,096 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-02 13:03:46,097 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-02 13:03:46,097 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-02 13:03:46,097 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-02 13:03:46,098 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-02 13:03:46,098 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-02 13:03:46,098 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-02 13:03:46,098 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-02 13:03:46,099 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-02 13:03:46,099 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-02 13:03:46,099 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-02 13:03:46,099 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-02 13:03:46,100 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-02 13:03:46,100 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-02 13:03:46,101 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-02 13:03:46,101 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-02 13:03:46,101 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-02 13:03:46,102 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-02 13:03:46,102 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-02 13:03:46,102 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-02 13:03:46,104 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-02 13:03:46,104 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-02 13:03:46,104 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-02 13:03:46,105 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-02 13:03:46,105 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-02 13:03:46,105 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-02 13:03:46,105 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-02 13:03:46,106 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-02 13:03:46,106 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-02 13:03:46,107 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-02 13:03:46,107 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-02 13:03:46,107 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-02 13:03:46,107 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-02 13:03:46,107 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-02 13:03:46,108 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-02 13:03:46,109 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-02 13:03:46,112 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-02 13:03:46,113 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-02 13:03:46,113 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-02 13:03:46,114 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-02 13:03:46,119 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-02 13:03:46,119 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-02 13:03:46,119 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Sign [2019-10-02 13:03:46,120 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-02 13:03:46,120 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-02 13:03:46,120 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-02 13:03:46,120 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-02 13:03:46,120 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-02 13:03:46,120 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-02 13:03:46,120 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-02 13:03:46,121 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-02 13:03:46,121 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-02 13:03:46,121 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-02 13:03:46,121 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-02 13:03:46,122 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-02 13:03:46,122 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-02 13:03:46,122 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-02 13:03:46,122 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-02 13:03:46,123 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-02 13:03:46,123 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-02 13:03:46,123 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-02 13:03:46,123 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-02 13:03:46,123 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-02 13:03:46,123 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-02 13:03:46,123 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-02 13:03:46,123 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-02 13:03:46,124 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-02 13:03:46,124 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__VerifyForward_spec__1 [2019-10-02 13:03:46,124 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-10-02 13:03:46,124 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-02 13:03:46,124 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-02 13:03:46,124 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-02 13:03:46,124 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-02 13:03:46,125 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-02 13:03:46,125 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-02 13:03:46,125 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-02 13:03:46,125 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-02 13:03:46,125 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-02 13:03:46,125 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-02 13:03:46,125 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-02 13:03:46,125 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-02 13:03:46,126 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-02 13:03:46,126 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-02 13:03:46,126 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-02 13:03:46,126 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-02 13:03:46,126 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-02 13:03:46,126 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-02 13:03:46,126 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-02 13:03:46,127 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-02 13:03:46,127 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-02 13:03:46,127 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-02 13:03:46,128 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-02 13:03:46,128 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-02 13:03:46,128 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-02 13:03:46,128 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-02 13:03:46,128 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-02 13:03:46,128 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-02 13:03:46,128 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-02 13:03:46,129 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-02 13:03:46,129 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-02 13:03:46,129 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-02 13:03:46,129 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-02 13:03:46,129 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-02 13:03:46,129 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-02 13:03:46,129 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-02 13:03:46,130 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-02 13:03:46,130 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-02 13:03:46,130 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-02 13:03:46,130 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-02 13:03:46,130 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-02 13:03:46,130 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-02 13:03:46,130 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-02 13:03:46,130 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-02 13:03:46,131 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-02 13:03:46,131 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-02 13:03:46,131 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-02 13:03:46,131 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-02 13:03:46,131 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-02 13:03:46,131 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-02 13:03:46,131 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-02 13:03:46,131 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-02 13:03:46,132 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-02 13:03:46,132 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-02 13:03:46,132 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-02 13:03:46,132 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-02 13:03:46,132 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-02 13:03:46,132 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-02 13:03:48,359 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-02 13:03:48,359 INFO L283 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-02 13:03:48,361 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.10 01:03:48 BoogieIcfgContainer [2019-10-02 13:03:48,361 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-02 13:03:48,362 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-02 13:03:48,363 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-02 13:03:48,366 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-02 13:03:48,366 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.10 01:03:44" (1/3) ... [2019-10-02 13:03:48,367 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@667853fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.10 01:03:48, skipping insertion in model container [2019-10-02 13:03:48,367 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 01:03:45" (2/3) ... [2019-10-02 13:03:48,368 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@667853fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.10 01:03:48, skipping insertion in model container [2019-10-02 13:03:48,368 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.10 01:03:48" (3/3) ... [2019-10-02 13:03:48,369 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec27_product13.cil.c [2019-10-02 13:03:48,380 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-02 13:03:48,390 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-02 13:03:48,408 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-02 13:03:48,447 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-10-02 13:03:48,448 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-10-02 13:03:48,448 INFO L378 AbstractCegarLoop]: Hoare is true [2019-10-02 13:03:48,448 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-02 13:03:48,449 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-02 13:03:48,449 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-02 13:03:48,449 INFO L382 AbstractCegarLoop]: Difference is false [2019-10-02 13:03:48,449 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-02 13:03:48,449 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-02 13:03:48,482 INFO L276 IsEmpty]: Start isEmpty. Operand 449 states. [2019-10-02 13:03:48,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2019-10-02 13:03:48,506 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 13:03:48,508 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 13:03:48,510 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 13:03:48,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 13:03:48,517 INFO L82 PathProgramCache]: Analyzing trace with hash 1066825624, now seen corresponding path program 1 times [2019-10-02 13:03:48,519 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 13:03:48,519 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 13:03:48,591 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:03:48,591 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:03:48,591 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:03:48,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:03:49,183 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-02 13:03:49,186 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 13:03:49,186 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-02 13:03:49,191 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-02 13:03:49,206 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-02 13:03:49,207 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-02 13:03:49,209 INFO L87 Difference]: Start difference. First operand 449 states. Second operand 2 states. [2019-10-02 13:03:49,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 13:03:49,288 INFO L93 Difference]: Finished difference Result 617 states and 816 transitions. [2019-10-02 13:03:49,288 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-02 13:03:49,290 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 177 [2019-10-02 13:03:49,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 13:03:49,327 INFO L225 Difference]: With dead ends: 617 [2019-10-02 13:03:49,327 INFO L226 Difference]: Without dead ends: 409 [2019-10-02 13:03:49,333 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-02 13:03:49,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 409 states. [2019-10-02 13:03:49,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 409 to 409. [2019-10-02 13:03:49,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 409 states. [2019-10-02 13:03:49,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 409 states to 409 states and 544 transitions. [2019-10-02 13:03:49,438 INFO L78 Accepts]: Start accepts. Automaton has 409 states and 544 transitions. Word has length 177 [2019-10-02 13:03:49,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 13:03:49,443 INFO L475 AbstractCegarLoop]: Abstraction has 409 states and 544 transitions. [2019-10-02 13:03:49,443 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-02 13:03:49,444 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states and 544 transitions. [2019-10-02 13:03:49,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2019-10-02 13:03:49,458 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 13:03:49,458 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 13:03:49,459 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 13:03:49,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 13:03:49,463 INFO L82 PathProgramCache]: Analyzing trace with hash -455066040, now seen corresponding path program 1 times [2019-10-02 13:03:49,463 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 13:03:49,463 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 13:03:49,470 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:03:49,470 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:03:49,509 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:03:49,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:03:49,825 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-02 13:03:49,826 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 13:03:49,826 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-02 13:03:49,828 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-02 13:03:49,828 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-02 13:03:49,829 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-02 13:03:49,829 INFO L87 Difference]: Start difference. First operand 409 states and 544 transitions. Second operand 3 states. [2019-10-02 13:03:49,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 13:03:49,873 INFO L93 Difference]: Finished difference Result 600 states and 782 transitions. [2019-10-02 13:03:49,874 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-02 13:03:49,874 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 178 [2019-10-02 13:03:49,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 13:03:49,879 INFO L225 Difference]: With dead ends: 600 [2019-10-02 13:03:49,879 INFO L226 Difference]: Without dead ends: 412 [2019-10-02 13:03:49,882 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-02 13:03:49,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 412 states. [2019-10-02 13:03:49,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 412 to 411. [2019-10-02 13:03:49,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 411 states. [2019-10-02 13:03:49,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 411 states to 411 states and 546 transitions. [2019-10-02 13:03:49,911 INFO L78 Accepts]: Start accepts. Automaton has 411 states and 546 transitions. Word has length 178 [2019-10-02 13:03:49,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 13:03:49,912 INFO L475 AbstractCegarLoop]: Abstraction has 411 states and 546 transitions. [2019-10-02 13:03:49,912 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-02 13:03:49,913 INFO L276 IsEmpty]: Start isEmpty. Operand 411 states and 546 transitions. [2019-10-02 13:03:49,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2019-10-02 13:03:49,916 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 13:03:49,917 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2019-10-02 13:03:49,917 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 13:03:49,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 13:03:49,918 INFO L82 PathProgramCache]: Analyzing trace with hash -1895632684, now seen corresponding path program 1 times [2019-10-02 13:03:49,918 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 13:03:49,918 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 13:03:49,922 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:03:49,923 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:03:49,923 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:03:49,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:03:50,106 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-02 13:03:50,107 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 13:03:50,107 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-02 13:03:50,108 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-02 13:03:50,111 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-02 13:03:50,112 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-02 13:03:50,112 INFO L87 Difference]: Start difference. First operand 411 states and 546 transitions. Second operand 3 states. [2019-10-02 13:03:50,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 13:03:50,158 INFO L93 Difference]: Finished difference Result 796 states and 1087 transitions. [2019-10-02 13:03:50,158 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-02 13:03:50,158 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 184 [2019-10-02 13:03:50,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 13:03:50,162 INFO L225 Difference]: With dead ends: 796 [2019-10-02 13:03:50,163 INFO L226 Difference]: Without dead ends: 450 [2019-10-02 13:03:50,165 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-02 13:03:50,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 450 states. [2019-10-02 13:03:50,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 450 to 449. [2019-10-02 13:03:50,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 449 states. [2019-10-02 13:03:50,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 449 states to 449 states and 612 transitions. [2019-10-02 13:03:50,227 INFO L78 Accepts]: Start accepts. Automaton has 449 states and 612 transitions. Word has length 184 [2019-10-02 13:03:50,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 13:03:50,228 INFO L475 AbstractCegarLoop]: Abstraction has 449 states and 612 transitions. [2019-10-02 13:03:50,228 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-02 13:03:50,228 INFO L276 IsEmpty]: Start isEmpty. Operand 449 states and 612 transitions. [2019-10-02 13:03:50,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2019-10-02 13:03:50,232 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 13:03:50,234 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2019-10-02 13:03:50,234 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 13:03:50,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 13:03:50,235 INFO L82 PathProgramCache]: Analyzing trace with hash -1099086942, now seen corresponding path program 1 times [2019-10-02 13:03:50,235 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 13:03:50,235 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 13:03:50,241 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:03:50,241 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:03:50,241 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:03:50,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:03:50,506 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2019-10-02 13:03:50,506 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 13:03:50,506 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-02 13:03:50,508 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-02 13:03:50,509 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-02 13:03:50,509 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-02 13:03:50,509 INFO L87 Difference]: Start difference. First operand 449 states and 612 transitions. Second operand 8 states. [2019-10-02 13:03:50,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 13:03:50,592 INFO L93 Difference]: Finished difference Result 619 states and 829 transitions. [2019-10-02 13:03:50,592 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-02 13:03:50,592 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 185 [2019-10-02 13:03:50,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 13:03:50,601 INFO L225 Difference]: With dead ends: 619 [2019-10-02 13:03:50,601 INFO L226 Difference]: Without dead ends: 449 [2019-10-02 13:03:50,603 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-02 13:03:50,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 449 states. [2019-10-02 13:03:50,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 449 to 449. [2019-10-02 13:03:50,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 449 states. [2019-10-02 13:03:50,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 449 states to 449 states and 611 transitions. [2019-10-02 13:03:50,634 INFO L78 Accepts]: Start accepts. Automaton has 449 states and 611 transitions. Word has length 185 [2019-10-02 13:03:50,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 13:03:50,635 INFO L475 AbstractCegarLoop]: Abstraction has 449 states and 611 transitions. [2019-10-02 13:03:50,635 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-02 13:03:50,638 INFO L276 IsEmpty]: Start isEmpty. Operand 449 states and 611 transitions. [2019-10-02 13:03:50,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2019-10-02 13:03:50,645 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 13:03:50,645 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 13:03:50,645 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 13:03:50,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 13:03:50,646 INFO L82 PathProgramCache]: Analyzing trace with hash -1092785353, now seen corresponding path program 1 times [2019-10-02 13:03:50,646 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 13:03:50,646 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 13:03:50,650 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:03:50,650 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:03:50,650 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:03:50,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:03:50,931 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2019-10-02 13:03:50,931 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 13:03:50,932 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-02 13:03:50,933 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-02 13:03:50,933 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-02 13:03:50,934 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-02 13:03:50,934 INFO L87 Difference]: Start difference. First operand 449 states and 611 transitions. Second operand 7 states. [2019-10-02 13:03:53,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 13:03:53,163 INFO L93 Difference]: Finished difference Result 812 states and 1070 transitions. [2019-10-02 13:03:53,170 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-02 13:03:53,170 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 192 [2019-10-02 13:03:53,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 13:03:53,175 INFO L225 Difference]: With dead ends: 812 [2019-10-02 13:03:53,175 INFO L226 Difference]: Without dead ends: 634 [2019-10-02 13:03:53,176 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2019-10-02 13:03:53,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 634 states. [2019-10-02 13:03:53,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 634 to 625. [2019-10-02 13:03:53,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 625 states. [2019-10-02 13:03:53,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 625 states to 625 states and 832 transitions. [2019-10-02 13:03:53,211 INFO L78 Accepts]: Start accepts. Automaton has 625 states and 832 transitions. Word has length 192 [2019-10-02 13:03:53,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 13:03:53,212 INFO L475 AbstractCegarLoop]: Abstraction has 625 states and 832 transitions. [2019-10-02 13:03:53,212 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-02 13:03:53,212 INFO L276 IsEmpty]: Start isEmpty. Operand 625 states and 832 transitions. [2019-10-02 13:03:53,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2019-10-02 13:03:53,215 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 13:03:53,216 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 13:03:53,216 INFO L418 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 13:03:53,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 13:03:53,216 INFO L82 PathProgramCache]: Analyzing trace with hash 562715681, now seen corresponding path program 1 times [2019-10-02 13:03:53,216 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 13:03:53,217 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 13:03:53,220 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:03:53,220 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:03:53,221 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:03:53,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:03:53,612 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2019-10-02 13:03:53,613 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 13:03:53,613 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2019-10-02 13:03:53,613 INFO L454 AbstractCegarLoop]: Interpolant automaton has 22 states [2019-10-02 13:03:53,614 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2019-10-02 13:03:53,614 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=421, Unknown=0, NotChecked=0, Total=462 [2019-10-02 13:03:53,614 INFO L87 Difference]: Start difference. First operand 625 states and 832 transitions. Second operand 22 states. [2019-10-02 13:03:54,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 13:03:54,126 INFO L93 Difference]: Finished difference Result 1043 states and 1362 transitions. [2019-10-02 13:03:54,127 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2019-10-02 13:03:54,127 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 193 [2019-10-02 13:03:54,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 13:03:54,132 INFO L225 Difference]: With dead ends: 1043 [2019-10-02 13:03:54,132 INFO L226 Difference]: Without dead ends: 663 [2019-10-02 13:03:54,134 INFO L640 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 [2019-10-02 13:03:54,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 663 states. [2019-10-02 13:03:54,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 663 to 659. [2019-10-02 13:03:54,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 659 states. [2019-10-02 13:03:54,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 659 states to 659 states and 872 transitions. [2019-10-02 13:03:54,169 INFO L78 Accepts]: Start accepts. Automaton has 659 states and 872 transitions. Word has length 193 [2019-10-02 13:03:54,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 13:03:54,170 INFO L475 AbstractCegarLoop]: Abstraction has 659 states and 872 transitions. [2019-10-02 13:03:54,170 INFO L476 AbstractCegarLoop]: Interpolant automaton has 22 states. [2019-10-02 13:03:54,170 INFO L276 IsEmpty]: Start isEmpty. Operand 659 states and 872 transitions. [2019-10-02 13:03:54,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2019-10-02 13:03:54,174 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 13:03:54,174 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2019-10-02 13:03:54,174 INFO L418 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 13:03:54,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 13:03:54,175 INFO L82 PathProgramCache]: Analyzing trace with hash 2094009423, now seen corresponding path program 1 times [2019-10-02 13:03:54,175 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 13:03:54,175 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 13:03:54,179 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:03:54,179 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:03:54,180 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:03:54,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:03:54,496 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2019-10-02 13:03:54,496 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 13:03:54,497 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-02 13:03:54,497 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-02 13:03:54,497 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-02 13:03:54,499 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-02 13:03:54,499 INFO L87 Difference]: Start difference. First operand 659 states and 872 transitions. Second operand 8 states. [2019-10-02 13:03:58,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 13:03:58,506 INFO L93 Difference]: Finished difference Result 1839 states and 2373 transitions. [2019-10-02 13:03:58,506 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-10-02 13:03:58,506 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 224 [2019-10-02 13:03:58,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 13:03:58,521 INFO L225 Difference]: With dead ends: 1839 [2019-10-02 13:03:58,521 INFO L226 Difference]: Without dead ends: 1473 [2019-10-02 13:03:58,523 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=75, Invalid=267, Unknown=0, NotChecked=0, Total=342 [2019-10-02 13:03:58,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1473 states. [2019-10-02 13:03:58,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1473 to 1459. [2019-10-02 13:03:58,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1459 states. [2019-10-02 13:03:58,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1459 states to 1459 states and 1896 transitions. [2019-10-02 13:03:58,610 INFO L78 Accepts]: Start accepts. Automaton has 1459 states and 1896 transitions. Word has length 224 [2019-10-02 13:03:58,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 13:03:58,611 INFO L475 AbstractCegarLoop]: Abstraction has 1459 states and 1896 transitions. [2019-10-02 13:03:58,611 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-02 13:03:58,611 INFO L276 IsEmpty]: Start isEmpty. Operand 1459 states and 1896 transitions. [2019-10-02 13:03:58,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2019-10-02 13:03:58,618 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 13:03:58,619 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2019-10-02 13:03:58,619 INFO L418 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 13:03:58,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 13:03:58,620 INFO L82 PathProgramCache]: Analyzing trace with hash -458535677, now seen corresponding path program 1 times [2019-10-02 13:03:58,620 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 13:03:58,624 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 13:03:58,628 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:03:58,629 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:03:58,629 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:03:58,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:03:59,118 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2019-10-02 13:03:59,119 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 13:03:59,119 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2019-10-02 13:03:59,120 INFO L454 AbstractCegarLoop]: Interpolant automaton has 18 states [2019-10-02 13:03:59,121 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2019-10-02 13:03:59,121 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=273, Unknown=0, NotChecked=0, Total=306 [2019-10-02 13:03:59,122 INFO L87 Difference]: Start difference. First operand 1459 states and 1896 transitions. Second operand 18 states. [2019-10-02 13:03:59,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 13:03:59,640 INFO L93 Difference]: Finished difference Result 2072 states and 2679 transitions. [2019-10-02 13:03:59,640 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2019-10-02 13:03:59,640 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 225 [2019-10-02 13:03:59,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 13:03:59,648 INFO L225 Difference]: With dead ends: 2072 [2019-10-02 13:03:59,648 INFO L226 Difference]: Without dead ends: 1181 [2019-10-02 13:03:59,652 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=61, Invalid=539, Unknown=0, NotChecked=0, Total=600 [2019-10-02 13:03:59,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1181 states. [2019-10-02 13:03:59,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1181 to 1175. [2019-10-02 13:03:59,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1175 states. [2019-10-02 13:03:59,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1175 states to 1175 states and 1546 transitions. [2019-10-02 13:03:59,725 INFO L78 Accepts]: Start accepts. Automaton has 1175 states and 1546 transitions. Word has length 225 [2019-10-02 13:03:59,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 13:03:59,726 INFO L475 AbstractCegarLoop]: Abstraction has 1175 states and 1546 transitions. [2019-10-02 13:03:59,726 INFO L476 AbstractCegarLoop]: Interpolant automaton has 18 states. [2019-10-02 13:03:59,726 INFO L276 IsEmpty]: Start isEmpty. Operand 1175 states and 1546 transitions. [2019-10-02 13:03:59,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2019-10-02 13:03:59,731 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 13:03:59,732 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2019-10-02 13:03:59,732 INFO L418 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 13:03:59,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 13:03:59,733 INFO L82 PathProgramCache]: Analyzing trace with hash -2120696884, now seen corresponding path program 1 times [2019-10-02 13:03:59,733 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 13:03:59,733 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 13:03:59,737 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:03:59,737 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:03:59,737 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:03:59,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:03:59,936 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2019-10-02 13:03:59,936 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-02 13:03:59,936 INFO L224 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-10-02 13:04:00,061 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:04:00,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:04:00,487 INFO L256 TraceCheckSpWp]: Trace formula consists of 2542 conjuncts, 8 conjunts are in the unsatisfiable core [2019-10-02 13:04:00,506 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-02 13:04:00,766 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2019-10-02 13:04:00,784 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-02 13:04:00,784 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [7] total 14 [2019-10-02 13:04:00,788 INFO L454 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-10-02 13:04:00,788 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-10-02 13:04:00,790 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2019-10-02 13:04:00,790 INFO L87 Difference]: Start difference. First operand 1175 states and 1546 transitions. Second operand 14 states. [2019-10-02 13:04:04,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 13:04:04,423 INFO L93 Difference]: Finished difference Result 4327 states and 5812 transitions. [2019-10-02 13:04:04,423 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2019-10-02 13:04:04,423 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 234 [2019-10-02 13:04:04,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 13:04:04,442 INFO L225 Difference]: With dead ends: 4327 [2019-10-02 13:04:04,442 INFO L226 Difference]: Without dead ends: 3186 [2019-10-02 13:04:04,447 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 263 GetRequests, 234 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=135, Invalid=795, Unknown=0, NotChecked=0, Total=930 [2019-10-02 13:04:04,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3186 states. [2019-10-02 13:04:04,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3186 to 3076. [2019-10-02 13:04:04,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3076 states. [2019-10-02 13:04:04,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3076 states to 3076 states and 4106 transitions. [2019-10-02 13:04:04,632 INFO L78 Accepts]: Start accepts. Automaton has 3076 states and 4106 transitions. Word has length 234 [2019-10-02 13:04:04,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 13:04:04,633 INFO L475 AbstractCegarLoop]: Abstraction has 3076 states and 4106 transitions. [2019-10-02 13:04:04,633 INFO L476 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-10-02 13:04:04,633 INFO L276 IsEmpty]: Start isEmpty. Operand 3076 states and 4106 transitions. [2019-10-02 13:04:04,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2019-10-02 13:04:04,644 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 13:04:04,644 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 13:04:04,645 INFO L418 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 13:04:04,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 13:04:04,646 INFO L82 PathProgramCache]: Analyzing trace with hash 314287688, now seen corresponding path program 1 times [2019-10-02 13:04:04,646 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 13:04:04,646 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 13:04:04,651 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:04:04,651 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:04:04,651 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:04:04,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:04:04,908 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-02 13:04:04,909 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-02 13:04:04,909 INFO L224 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-10-02 13:04:05,039 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:04:05,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:04:05,550 INFO L256 TraceCheckSpWp]: Trace formula consists of 2544 conjuncts, 6 conjunts are in the unsatisfiable core [2019-10-02 13:04:05,583 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-02 13:04:05,765 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-02 13:04:05,781 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-02 13:04:05,782 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 12 [2019-10-02 13:04:05,783 INFO L454 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-10-02 13:04:05,783 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-10-02 13:04:05,785 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2019-10-02 13:04:05,786 INFO L87 Difference]: Start difference. First operand 3076 states and 4106 transitions. Second operand 12 states. [2019-10-02 13:04:09,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 13:04:09,163 INFO L93 Difference]: Finished difference Result 11285 states and 15332 transitions. [2019-10-02 13:04:09,163 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2019-10-02 13:04:09,163 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 236 [2019-10-02 13:04:09,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 13:04:09,215 INFO L225 Difference]: With dead ends: 11285 [2019-10-02 13:04:09,215 INFO L226 Difference]: Without dead ends: 8254 [2019-10-02 13:04:09,229 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 266 GetRequests, 240 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=121, Invalid=635, Unknown=0, NotChecked=0, Total=756 [2019-10-02 13:04:09,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8254 states. [2019-10-02 13:04:09,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8254 to 7843. [2019-10-02 13:04:09,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7843 states. [2019-10-02 13:04:09,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7843 states to 7843 states and 10614 transitions. [2019-10-02 13:04:09,613 INFO L78 Accepts]: Start accepts. Automaton has 7843 states and 10614 transitions. Word has length 236 [2019-10-02 13:04:09,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 13:04:09,614 INFO L475 AbstractCegarLoop]: Abstraction has 7843 states and 10614 transitions. [2019-10-02 13:04:09,614 INFO L476 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-10-02 13:04:09,614 INFO L276 IsEmpty]: Start isEmpty. Operand 7843 states and 10614 transitions. [2019-10-02 13:04:09,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2019-10-02 13:04:09,625 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 13:04:09,625 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2019-10-02 13:04:09,626 INFO L418 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 13:04:09,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 13:04:09,626 INFO L82 PathProgramCache]: Analyzing trace with hash -189117594, now seen corresponding path program 1 times [2019-10-02 13:04:09,626 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 13:04:09,626 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 13:04:09,630 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:04:09,630 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:04:09,630 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:04:09,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:04:09,792 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2019-10-02 13:04:09,792 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-02 13:04:09,793 INFO L224 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-10-02 13:04:09,917 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:04:10,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:04:10,371 INFO L256 TraceCheckSpWp]: Trace formula consists of 2545 conjuncts, 8 conjunts are in the unsatisfiable core [2019-10-02 13:04:10,379 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-02 13:04:10,643 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2019-10-02 13:04:10,654 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-02 13:04:10,655 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [5] total 12 [2019-10-02 13:04:10,655 INFO L454 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-10-02 13:04:10,656 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-10-02 13:04:10,656 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2019-10-02 13:04:10,656 INFO L87 Difference]: Start difference. First operand 7843 states and 10614 transitions. Second operand 12 states. [2019-10-02 13:04:13,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 13:04:13,936 INFO L93 Difference]: Finished difference Result 28964 states and 39888 transitions. [2019-10-02 13:04:13,936 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-10-02 13:04:13,936 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 237 [2019-10-02 13:04:13,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 13:04:14,071 INFO L225 Difference]: With dead ends: 28964 [2019-10-02 13:04:14,072 INFO L226 Difference]: Without dead ends: 21166 [2019-10-02 13:04:14,114 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 260 GetRequests, 239 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=95, Invalid=411, Unknown=0, NotChecked=0, Total=506 [2019-10-02 13:04:14,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21166 states. [2019-10-02 13:04:15,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21166 to 20830. [2019-10-02 13:04:15,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20830 states. [2019-10-02 13:04:15,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20830 states to 20830 states and 28418 transitions. [2019-10-02 13:04:15,101 INFO L78 Accepts]: Start accepts. Automaton has 20830 states and 28418 transitions. Word has length 237 [2019-10-02 13:04:15,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 13:04:15,101 INFO L475 AbstractCegarLoop]: Abstraction has 20830 states and 28418 transitions. [2019-10-02 13:04:15,101 INFO L476 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-10-02 13:04:15,102 INFO L276 IsEmpty]: Start isEmpty. Operand 20830 states and 28418 transitions. [2019-10-02 13:04:15,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2019-10-02 13:04:15,267 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 13:04:15,268 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2019-10-02 13:04:15,268 INFO L418 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 13:04:15,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 13:04:15,269 INFO L82 PathProgramCache]: Analyzing trace with hash 1205601536, now seen corresponding path program 1 times [2019-10-02 13:04:15,269 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 13:04:15,269 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 13:04:15,273 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:04:15,273 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:04:15,273 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:04:15,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:04:15,757 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 5 proven. 11 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2019-10-02 13:04:15,758 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-02 13:04:15,758 INFO L224 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-10-02 13:04:15,886 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:04:16,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:04:16,250 INFO L256 TraceCheckSpWp]: Trace formula consists of 2547 conjuncts, 8 conjunts are in the unsatisfiable core [2019-10-02 13:04:16,258 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-02 13:04:16,563 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2019-10-02 13:04:16,571 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-02 13:04:16,571 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [29] total 36 [2019-10-02 13:04:16,572 INFO L454 AbstractCegarLoop]: Interpolant automaton has 36 states [2019-10-02 13:04:16,572 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2019-10-02 13:04:16,573 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=1180, Unknown=0, NotChecked=0, Total=1260 [2019-10-02 13:04:16,575 INFO L87 Difference]: Start difference. First operand 20830 states and 28418 transitions. Second operand 36 states. [2019-10-02 13:04:57,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 13:04:57,211 INFO L93 Difference]: Finished difference Result 224610 states and 323142 transitions. [2019-10-02 13:04:57,212 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 119 states. [2019-10-02 13:04:57,212 INFO L78 Accepts]: Start accepts. Automaton has 36 states. Word has length 239 [2019-10-02 13:04:57,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 13:04:58,234 INFO L225 Difference]: With dead ends: 224610 [2019-10-02 13:04:58,235 INFO L226 Difference]: Without dead ends: 203768 [2019-10-02 13:04:58,477 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 440 GetRequests, 290 SyntacticMatches, 0 SemanticMatches, 150 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6816 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=1920, Invalid=21032, Unknown=0, NotChecked=0, Total=22952 [2019-10-02 13:04:58,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203768 states. [2019-10-02 13:05:11,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203768 to 144782. [2019-10-02 13:05:11,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 144782 states. [2019-10-02 13:05:12,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144782 states to 144782 states and 205224 transitions. [2019-10-02 13:05:12,088 INFO L78 Accepts]: Start accepts. Automaton has 144782 states and 205224 transitions. Word has length 239 [2019-10-02 13:05:12,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 13:05:12,089 INFO L475 AbstractCegarLoop]: Abstraction has 144782 states and 205224 transitions. [2019-10-02 13:05:12,089 INFO L476 AbstractCegarLoop]: Interpolant automaton has 36 states. [2019-10-02 13:05:12,089 INFO L276 IsEmpty]: Start isEmpty. Operand 144782 states and 205224 transitions. [2019-10-02 13:05:12,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2019-10-02 13:05:12,194 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 13:05:12,195 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2019-10-02 13:05:12,195 INFO L418 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 13:05:12,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 13:05:12,196 INFO L82 PathProgramCache]: Analyzing trace with hash 1534194758, now seen corresponding path program 1 times [2019-10-02 13:05:12,196 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 13:05:12,196 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 13:05:12,199 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:05:12,200 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:05:12,200 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:05:12,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:05:12,722 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 5 proven. 11 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2019-10-02 13:05:12,722 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-02 13:05:12,722 INFO L224 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-10-02 13:05:12,858 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:05:13,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:05:13,223 INFO L256 TraceCheckSpWp]: Trace formula consists of 2548 conjuncts, 6 conjunts are in the unsatisfiable core [2019-10-02 13:05:13,230 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-02 13:05:14,152 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2019-10-02 13:05:14,158 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-02 13:05:14,158 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [29] total 34 [2019-10-02 13:05:14,161 INFO L454 AbstractCegarLoop]: Interpolant automaton has 34 states [2019-10-02 13:05:14,162 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2019-10-02 13:05:14,162 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=1048, Unknown=0, NotChecked=0, Total=1122 [2019-10-02 13:05:14,162 INFO L87 Difference]: Start difference. First operand 144782 states and 205224 transitions. Second operand 34 states. [2019-10-02 13:06:26,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 13:06:26,780 INFO L93 Difference]: Finished difference Result 853119 states and 1242196 transitions. [2019-10-02 13:06:26,780 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 121 states. [2019-10-02 13:06:26,780 INFO L78 Accepts]: Start accepts. Automaton has 34 states. Word has length 240 [2019-10-02 13:06:26,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 13:06:29,617 INFO L225 Difference]: With dead ends: 853119 [2019-10-02 13:06:29,617 INFO L226 Difference]: Without dead ends: 707830 [2019-10-02 13:06:30,078 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 447 GetRequests, 297 SyntacticMatches, 0 SemanticMatches, 150 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7026 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=1908, Invalid=21044, Unknown=0, NotChecked=0, Total=22952 [2019-10-02 13:06:30,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 707830 states. [2019-10-02 13:07:19,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 707830 to 543030. [2019-10-02 13:07:19,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 543030 states. [2019-10-02 13:07:31,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 543030 states to 543030 states and 777971 transitions. [2019-10-02 13:07:31,134 INFO L78 Accepts]: Start accepts. Automaton has 543030 states and 777971 transitions. Word has length 240 [2019-10-02 13:07:31,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 13:07:31,134 INFO L475 AbstractCegarLoop]: Abstraction has 543030 states and 777971 transitions. [2019-10-02 13:07:31,134 INFO L476 AbstractCegarLoop]: Interpolant automaton has 34 states. [2019-10-02 13:07:31,134 INFO L276 IsEmpty]: Start isEmpty. Operand 543030 states and 777971 transitions. [2019-10-02 13:07:31,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2019-10-02 13:07:31,336 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 13:07:31,337 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2019-10-02 13:07:31,337 INFO L418 AbstractCegarLoop]: === Iteration 14 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 13:07:31,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 13:07:31,337 INFO L82 PathProgramCache]: Analyzing trace with hash 1801859554, now seen corresponding path program 1 times [2019-10-02 13:07:31,337 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 13:07:31,338 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 13:07:31,341 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:07:31,342 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:07:31,342 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:07:31,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:07:31,967 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 5 proven. 11 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2019-10-02 13:07:31,968 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-02 13:07:31,968 INFO L224 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-10-02 13:07:32,113 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:07:32,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:07:32,497 INFO L256 TraceCheckSpWp]: Trace formula consists of 2550 conjuncts, 6 conjunts are in the unsatisfiable core [2019-10-02 13:07:32,504 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-02 13:07:32,813 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [MP z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (7)] Exception during sending of exit command (exit): Broken pipe [2019-10-02 13:07:32,833 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-02 13:07:32,834 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [29] total 34 [2019-10-02 13:07:32,837 INFO L454 AbstractCegarLoop]: Interpolant automaton has 34 states [2019-10-02 13:07:32,838 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2019-10-02 13:07:32,839 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=1048, Unknown=0, NotChecked=0, Total=1122 [2019-10-02 13:07:32,839 INFO L87 Difference]: Start difference. First operand 543030 states and 777971 transitions. Second operand 34 states. [2019-10-02 13:10:26,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 13:10:26,705 INFO L93 Difference]: Finished difference Result 2484281 states and 3594007 transitions. [2019-10-02 13:10:26,705 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 121 states. [2019-10-02 13:10:26,705 INFO L78 Accepts]: Start accepts. Automaton has 34 states. Word has length 242 [2019-10-02 13:10:26,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 13:10:54,184 INFO L225 Difference]: With dead ends: 2484281 [2019-10-02 13:10:54,184 INFO L226 Difference]: Without dead ends: 1939544 [2019-10-02 13:10:57,526 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 449 GetRequests, 299 SyntacticMatches, 0 SemanticMatches, 150 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7026 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=1908, Invalid=21044, Unknown=0, NotChecked=0, Total=22952 [2019-10-02 13:10:59,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1939544 states.