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_product17.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-673a906-m [2019-10-02 13:03:47,542 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-02 13:03:47,545 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-02 13:03:47,564 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-02 13:03:47,564 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-02 13:03:47,565 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-02 13:03:47,566 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-02 13:03:47,568 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-02 13:03:47,570 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-02 13:03:47,571 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-02 13:03:47,572 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-02 13:03:47,573 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-02 13:03:47,573 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-02 13:03:47,574 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-02 13:03:47,575 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-02 13:03:47,576 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-02 13:03:47,577 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-02 13:03:47,578 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-02 13:03:47,579 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-02 13:03:47,581 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-02 13:03:47,582 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-02 13:03:47,586 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-02 13:03:47,589 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-02 13:03:47,589 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-02 13:03:47,591 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-02 13:03:47,592 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-02 13:03:47,592 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-02 13:03:47,593 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-02 13:03:47,596 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-02 13:03:47,597 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-02 13:03:47,597 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-02 13:03:47,598 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-02 13:03:47,599 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-02 13:03:47,599 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-02 13:03:47,600 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-02 13:03:47,601 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-02 13:03:47,601 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-02 13:03:47,601 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-02 13:03:47,602 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-02 13:03:47,602 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-02 13:03:47,603 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-02 13:03:47,604 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 13:03:47,618 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-02 13:03:47,618 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-02 13:03:47,619 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-02 13:03:47,620 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-02 13:03:47,620 INFO L138 SettingsManager]: * Use SBE=true [2019-10-02 13:03:47,621 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-02 13:03:47,621 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-02 13:03:47,621 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-02 13:03:47,621 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-02 13:03:47,622 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-02 13:03:47,622 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-02 13:03:47,622 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-02 13:03:47,622 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-02 13:03:47,622 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-02 13:03:47,623 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-02 13:03:47,623 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-02 13:03:47,623 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-02 13:03:47,623 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-02 13:03:47,623 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-02 13:03:47,624 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-02 13:03:47,624 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-02 13:03:47,624 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-02 13:03:47,624 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-02 13:03:47,624 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-02 13:03:47,625 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-02 13:03:47,625 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-02 13:03:47,625 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-02 13:03:47,625 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-02 13:03:47,625 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-02 13:03:47,653 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-02 13:03:47,665 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-02 13:03:47,668 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-02 13:03:47,670 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-02 13:03:47,670 INFO L275 PluginConnector]: CDTParser initialized [2019-10-02 13:03:47,671 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec27_product17.cil.c [2019-10-02 13:03:47,739 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b45bc58b6/79c008bb8a324bfba6c0a0bd10ace485/FLAG1c3b34c25 [2019-10-02 13:03:48,340 INFO L306 CDTParser]: Found 1 translation units. [2019-10-02 13:03:48,341 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec27_product17.cil.c [2019-10-02 13:03:48,363 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b45bc58b6/79c008bb8a324bfba6c0a0bd10ace485/FLAG1c3b34c25 [2019-10-02 13:03:48,568 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b45bc58b6/79c008bb8a324bfba6c0a0bd10ace485 [2019-10-02 13:03:48,584 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-02 13:03:48,586 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-02 13:03:48,590 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-02 13:03:48,590 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-02 13:03:48,595 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-02 13:03:48,596 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.10 01:03:48" (1/1) ... [2019-10-02 13:03:48,600 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@247dfb19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 01:03:48, skipping insertion in model container [2019-10-02 13:03:48,600 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.10 01:03:48" (1/1) ... [2019-10-02 13:03:48,610 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-02 13:03:48,702 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-02 13:03:49,455 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-02 13:03:49,472 INFO L188 MainTranslator]: Completed pre-run [2019-10-02 13:03:49,618 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-02 13:03:49,707 INFO L192 MainTranslator]: Completed translation [2019-10-02 13:03:49,708 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 01:03:49 WrapperNode [2019-10-02 13:03:49,708 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-02 13:03:49,709 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-02 13:03:49,709 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-02 13:03:49,709 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-02 13:03:49,723 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 01:03:49" (1/1) ... [2019-10-02 13:03:49,724 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 01:03:49" (1/1) ... [2019-10-02 13:03:49,773 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 01:03:49" (1/1) ... [2019-10-02 13:03:49,774 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 01:03:49" (1/1) ... [2019-10-02 13:03:49,836 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 01:03:49" (1/1) ... [2019-10-02 13:03:49,856 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 01:03:49" (1/1) ... [2019-10-02 13:03:49,867 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 01:03:49" (1/1) ... [2019-10-02 13:03:49,884 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-02 13:03:49,887 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-02 13:03:49,887 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-02 13:03:49,887 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-02 13:03:49,888 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 01:03:49" (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 13:03:49,959 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-02 13:03:49,960 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-02 13:03:49,961 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-02 13:03:49,961 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-02 13:03:49,961 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-02 13:03:49,961 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AddressBook [2019-10-02 13:03:49,962 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-02 13:03:49,962 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-02 13:03:49,962 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-10-02 13:03:49,962 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-02 13:03:49,962 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-02 13:03:49,963 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-02 13:03:49,965 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-02 13:03:49,966 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-02 13:03:49,967 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-02 13:03:49,967 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-02 13:03:49,969 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-02 13:03:49,969 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-02 13:03:49,970 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-10-02 13:03:49,970 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-02 13:03:49,970 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-02 13:03:49,971 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-02 13:03:49,972 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-02 13:03:49,972 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-02 13:03:49,972 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-02 13:03:49,973 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-02 13:03:49,973 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-02 13:03:49,973 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-02 13:03:49,973 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-02 13:03:49,973 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-02 13:03:49,973 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-02 13:03:49,974 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-02 13:03:49,974 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-02 13:03:49,974 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-02 13:03:49,974 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-02 13:03:49,974 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-02 13:03:49,974 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-02 13:03:49,975 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-02 13:03:49,975 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-02 13:03:49,975 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-02 13:03:49,975 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-10-02 13:03:49,976 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__VerifyForward_spec__1 [2019-10-02 13:03:49,976 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-02 13:03:49,976 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-02 13:03:49,976 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-02 13:03:49,976 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-02 13:03:49,977 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-02 13:03:49,977 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-02 13:03:49,977 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-02 13:03:49,977 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-02 13:03:49,977 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-02 13:03:49,977 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-02 13:03:49,978 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-02 13:03:49,978 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-02 13:03:49,978 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-02 13:03:49,978 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-02 13:03:49,978 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-02 13:03:49,978 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-02 13:03:49,979 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-02 13:03:49,979 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-02 13:03:49,979 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-02 13:03:49,979 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-02 13:03:49,979 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-02 13:03:49,979 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-02 13:03:49,980 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-02 13:03:49,980 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-02 13:03:49,980 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-02 13:03:49,981 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-02 13:03:49,981 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-02 13:03:49,981 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-02 13:03:49,981 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-02 13:03:49,981 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-02 13:03:49,982 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-02 13:03:49,982 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-02 13:03:49,983 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-02 13:03:49,983 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-02 13:03:49,983 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-02 13:03:49,983 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-02 13:03:49,984 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-02 13:03:49,984 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-02 13:03:49,984 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-02 13:03:49,984 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-02 13:03:49,985 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-02 13:03:49,985 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-02 13:03:49,985 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__AddressBook [2019-10-02 13:03:49,985 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Sign [2019-10-02 13:03:49,986 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-02 13:03:49,987 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-02 13:03:49,987 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-02 13:03:49,987 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-02 13:03:49,987 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-02 13:03:49,988 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-02 13:03:49,988 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-02 13:03:49,988 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-02 13:03:49,988 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-02 13:03:49,989 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-02 13:03:49,989 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-02 13:03:49,989 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-02 13:03:49,989 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-02 13:03:49,989 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-02 13:03:49,989 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-02 13:03:49,990 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-02 13:03:49,990 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-02 13:03:49,990 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-02 13:03:49,990 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-02 13:03:49,990 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-02 13:03:49,991 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-02 13:03:49,991 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-02 13:03:49,991 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-02 13:03:49,991 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-02 13:03:49,991 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-02 13:03:49,991 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-02 13:03:49,992 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-02 13:03:49,992 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-02 13:03:49,992 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-02 13:03:49,992 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-02 13:03:49,992 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-02 13:03:49,993 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-02 13:03:49,993 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-02 13:03:49,993 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-02 13:03:49,994 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-02 13:03:49,994 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-02 13:03:49,994 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-02 13:03:49,994 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-02 13:03:49,995 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-02 13:03:49,995 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-02 13:03:49,995 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-02 13:03:49,995 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-02 13:03:49,996 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-02 13:03:49,996 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-02 13:03:49,996 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-02 13:03:49,996 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-02 13:03:49,997 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-02 13:03:49,997 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-02 13:03:49,997 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-02 13:03:49,997 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-02 13:03:49,998 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-02 13:03:49,998 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-02 13:03:49,998 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-02 13:03:49,999 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-02 13:03:50,002 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-02 13:03:50,003 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-02 13:03:50,003 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-02 13:03:50,004 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-02 13:03:50,011 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-02 13:03:50,011 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-10-02 13:03:50,011 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-02 13:03:50,011 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-02 13:03:50,011 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-02 13:03:50,012 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-02 13:03:50,012 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AddressBook [2019-10-02 13:03:50,012 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__VerifyForward_spec__1 [2019-10-02 13:03:50,012 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-10-02 13:03:50,012 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-02 13:03:50,012 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-02 13:03:50,012 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-02 13:03:50,013 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-02 13:03:50,013 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-02 13:03:50,013 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-02 13:03:50,013 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-02 13:03:50,014 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-02 13:03:50,014 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-02 13:03:50,014 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-02 13:03:50,014 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-02 13:03:50,014 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-02 13:03:50,015 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-02 13:03:50,015 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-02 13:03:50,015 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-02 13:03:50,015 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-02 13:03:50,015 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-02 13:03:50,015 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-02 13:03:50,015 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-02 13:03:50,015 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-02 13:03:50,016 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-02 13:03:50,016 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-02 13:03:50,016 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-02 13:03:50,016 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-02 13:03:50,016 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-02 13:03:50,016 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-02 13:03:50,016 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-02 13:03:50,016 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-02 13:03:50,017 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-02 13:03:50,017 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-10-02 13:03:50,017 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-02 13:03:50,017 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-02 13:03:50,017 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-02 13:03:50,017 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-02 13:03:50,017 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-02 13:03:50,018 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-02 13:03:50,018 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-02 13:03:50,018 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-02 13:03:50,018 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-02 13:03:50,018 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-02 13:03:50,018 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-02 13:03:50,018 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-02 13:03:50,018 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-02 13:03:50,019 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-02 13:03:50,019 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-02 13:03:50,019 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-02 13:03:50,019 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-02 13:03:50,019 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-02 13:03:50,019 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-02 13:03:50,019 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-02 13:03:50,019 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-02 13:03:50,020 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-02 13:03:50,020 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-02 13:03:50,020 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-02 13:03:50,020 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-02 13:03:50,020 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-02 13:03:50,020 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-02 13:03:50,020 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-02 13:03:50,021 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-02 13:03:50,021 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-02 13:03:50,021 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-02 13:03:50,021 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-02 13:03:50,021 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-02 13:03:50,021 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-02 13:03:50,021 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-02 13:03:50,021 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-02 13:03:50,022 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-02 13:03:50,022 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-02 13:03:50,022 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-02 13:03:50,022 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__AddressBook [2019-10-02 13:03:50,022 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Sign [2019-10-02 13:03:50,022 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-02 13:03:50,022 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-02 13:03:50,023 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-02 13:03:50,023 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-02 13:03:50,023 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-02 13:03:50,023 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-02 13:03:50,023 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-02 13:03:50,023 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-02 13:03:50,023 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-02 13:03:50,023 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-02 13:03:50,024 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-02 13:03:50,024 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-02 13:03:50,024 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-02 13:03:52,049 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-02 13:03:52,049 INFO L283 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-02 13:03:52,051 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.10 01:03:52 BoogieIcfgContainer [2019-10-02 13:03:52,052 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-02 13:03:52,053 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-02 13:03:52,054 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-02 13:03:52,057 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-02 13:03:52,057 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.10 01:03:48" (1/3) ... [2019-10-02 13:03:52,058 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fc45294 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.10 01:03:52, skipping insertion in model container [2019-10-02 13:03:52,058 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 01:03:49" (2/3) ... [2019-10-02 13:03:52,059 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fc45294 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.10 01:03:52, skipping insertion in model container [2019-10-02 13:03:52,059 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.10 01:03:52" (3/3) ... [2019-10-02 13:03:52,061 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec27_product17.cil.c [2019-10-02 13:03:52,072 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-02 13:03:52,082 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-02 13:03:52,101 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-02 13:03:52,150 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-10-02 13:03:52,151 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-10-02 13:03:52,151 INFO L378 AbstractCegarLoop]: Hoare is true [2019-10-02 13:03:52,151 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-02 13:03:52,151 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-02 13:03:52,151 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-02 13:03:52,151 INFO L382 AbstractCegarLoop]: Difference is false [2019-10-02 13:03:52,152 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-02 13:03:52,152 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-02 13:03:52,193 INFO L276 IsEmpty]: Start isEmpty. Operand 542 states. [2019-10-02 13:03:52,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2019-10-02 13:03:52,233 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 13:03:52,235 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, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 13:03:52,239 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 13:03:52,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 13:03:52,249 INFO L82 PathProgramCache]: Analyzing trace with hash 1817645931, now seen corresponding path program 1 times [2019-10-02 13:03:52,252 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 13:03:52,252 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 13:03:52,322 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:03:52,326 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:03:52,327 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:03:52,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:03:53,013 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 13:03:53,015 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 13:03:53,016 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-02 13:03:53,020 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-02 13:03:53,029 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-02 13:03:53,030 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-02 13:03:53,032 INFO L87 Difference]: Start difference. First operand 542 states. Second operand 2 states. [2019-10-02 13:03:53,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 13:03:53,114 INFO L93 Difference]: Finished difference Result 747 states and 1021 transitions. [2019-10-02 13:03:53,114 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-02 13:03:53,117 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 186 [2019-10-02 13:03:53,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 13:03:53,148 INFO L225 Difference]: With dead ends: 747 [2019-10-02 13:03:53,148 INFO L226 Difference]: Without dead ends: 496 [2019-10-02 13:03:53,155 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 13:03:53,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 496 states. [2019-10-02 13:03:53,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 496 to 496. [2019-10-02 13:03:53,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 496 states. [2019-10-02 13:03:53,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 496 states to 496 states and 681 transitions. [2019-10-02 13:03:53,250 INFO L78 Accepts]: Start accepts. Automaton has 496 states and 681 transitions. Word has length 186 [2019-10-02 13:03:53,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 13:03:53,252 INFO L475 AbstractCegarLoop]: Abstraction has 496 states and 681 transitions. [2019-10-02 13:03:53,252 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-02 13:03:53,253 INFO L276 IsEmpty]: Start isEmpty. Operand 496 states and 681 transitions. [2019-10-02 13:03:53,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2019-10-02 13:03:53,259 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 13:03:53,259 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 13:03:53,259 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 13:03:53,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 13:03:53,260 INFO L82 PathProgramCache]: Analyzing trace with hash -1884483805, now seen corresponding path program 1 times [2019-10-02 13:03:53,260 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 13:03:53,260 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 13:03:53,265 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:03:53,266 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:03:53,266 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:03:53,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:03:53,471 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 13:03:53,472 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 13:03:53,472 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-02 13:03:53,474 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-02 13:03:53,475 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-02 13:03:53,475 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-02 13:03:53,475 INFO L87 Difference]: Start difference. First operand 496 states and 681 transitions. Second operand 3 states. [2019-10-02 13:03:53,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 13:03:53,526 INFO L93 Difference]: Finished difference Result 730 states and 984 transitions. [2019-10-02 13:03:53,526 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-02 13:03:53,526 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 187 [2019-10-02 13:03:53,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 13:03:53,533 INFO L225 Difference]: With dead ends: 730 [2019-10-02 13:03:53,533 INFO L226 Difference]: Without dead ends: 499 [2019-10-02 13:03:53,536 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 13:03:53,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 499 states. [2019-10-02 13:03:53,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 499 to 498. [2019-10-02 13:03:53,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 498 states. [2019-10-02 13:03:53,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 498 states to 498 states and 683 transitions. [2019-10-02 13:03:53,583 INFO L78 Accepts]: Start accepts. Automaton has 498 states and 683 transitions. Word has length 187 [2019-10-02 13:03:53,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 13:03:53,583 INFO L475 AbstractCegarLoop]: Abstraction has 498 states and 683 transitions. [2019-10-02 13:03:53,584 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-02 13:03:53,584 INFO L276 IsEmpty]: Start isEmpty. Operand 498 states and 683 transitions. [2019-10-02 13:03:53,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2019-10-02 13:03:53,592 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 13:03:53,592 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 13:03:53,593 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 13:03:53,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 13:03:53,593 INFO L82 PathProgramCache]: Analyzing trace with hash 1131294487, now seen corresponding path program 1 times [2019-10-02 13:03:53,593 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 13:03:53,593 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 13:03:53,598 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:03:53,598 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:03:53,598 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:03:53,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:03:53,888 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 13:03:53,889 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 13:03:53,889 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-02 13:03:53,891 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-02 13:03:53,893 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-02 13:03:53,893 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-02 13:03:53,893 INFO L87 Difference]: Start difference. First operand 498 states and 683 transitions. Second operand 3 states. [2019-10-02 13:03:53,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 13:03:53,956 INFO L93 Difference]: Finished difference Result 972 states and 1364 transitions. [2019-10-02 13:03:53,957 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-02 13:03:53,957 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 193 [2019-10-02 13:03:53,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 13:03:53,968 INFO L225 Difference]: With dead ends: 972 [2019-10-02 13:03:53,968 INFO L226 Difference]: Without dead ends: 539 [2019-10-02 13:03:53,972 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 13:03:53,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 539 states. [2019-10-02 13:03:54,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 539 to 538. [2019-10-02 13:03:54,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 538 states. [2019-10-02 13:03:54,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 752 transitions. [2019-10-02 13:03:54,036 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 752 transitions. Word has length 193 [2019-10-02 13:03:54,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 13:03:54,037 INFO L475 AbstractCegarLoop]: Abstraction has 538 states and 752 transitions. [2019-10-02 13:03:54,038 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-02 13:03:54,038 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 752 transitions. [2019-10-02 13:03:54,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2019-10-02 13:03:54,052 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 13:03:54,052 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, 1] [2019-10-02 13:03:54,053 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 13:03:54,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 13:03:54,054 INFO L82 PathProgramCache]: Analyzing trace with hash 956987201, now seen corresponding path program 1 times [2019-10-02 13:03:54,054 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 13:03:54,054 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 13:03:54,063 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:03:54,063 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:03:54,064 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:03:54,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:03:54,439 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 13:03:54,440 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 13:03:54,440 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-02 13:03:54,442 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-02 13:03:54,442 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-02 13:03:54,442 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-02 13:03:54,443 INFO L87 Difference]: Start difference. First operand 538 states and 752 transitions. Second operand 8 states. [2019-10-02 13:03:54,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 13:03:54,525 INFO L93 Difference]: Finished difference Result 756 states and 1043 transitions. [2019-10-02 13:03:54,526 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-02 13:03:54,526 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 194 [2019-10-02 13:03:54,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 13:03:54,533 INFO L225 Difference]: With dead ends: 756 [2019-10-02 13:03:54,534 INFO L226 Difference]: Without dead ends: 538 [2019-10-02 13:03:54,535 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 13:03:54,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2019-10-02 13:03:54,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 538. [2019-10-02 13:03:54,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 538 states. [2019-10-02 13:03:54,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 751 transitions. [2019-10-02 13:03:54,562 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 751 transitions. Word has length 194 [2019-10-02 13:03:54,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 13:03:54,563 INFO L475 AbstractCegarLoop]: Abstraction has 538 states and 751 transitions. [2019-10-02 13:03:54,563 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-02 13:03:54,563 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 751 transitions. [2019-10-02 13:03:54,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2019-10-02 13:03:54,568 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 13:03:54,568 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, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 13:03:54,568 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 13:03:54,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 13:03:54,569 INFO L82 PathProgramCache]: Analyzing trace with hash 1401373072, now seen corresponding path program 1 times [2019-10-02 13:03:54,569 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 13:03:54,569 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 13:03:54,576 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:03:54,576 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:03:54,576 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:03:54,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:03:55,011 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 13:03:55,011 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 13:03:55,012 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-02 13:03:55,013 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-02 13:03:55,013 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-02 13:03:55,014 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-02 13:03:55,014 INFO L87 Difference]: Start difference. First operand 538 states and 751 transitions. Second operand 7 states. [2019-10-02 13:03:58,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 13:03:58,028 INFO L93 Difference]: Finished difference Result 1003 states and 1370 transitions. [2019-10-02 13:03:58,028 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-02 13:03:58,029 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 201 [2019-10-02 13:03:58,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 13:03:58,036 INFO L225 Difference]: With dead ends: 1003 [2019-10-02 13:03:58,036 INFO L226 Difference]: Without dead ends: 781 [2019-10-02 13:03:58,037 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 13 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 13:03:58,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 781 states. [2019-10-02 13:03:58,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 781 to 772. [2019-10-02 13:03:58,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 772 states. [2019-10-02 13:03:58,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 772 states to 772 states and 1061 transitions. [2019-10-02 13:03:58,080 INFO L78 Accepts]: Start accepts. Automaton has 772 states and 1061 transitions. Word has length 201 [2019-10-02 13:03:58,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 13:03:58,080 INFO L475 AbstractCegarLoop]: Abstraction has 772 states and 1061 transitions. [2019-10-02 13:03:58,081 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-02 13:03:58,081 INFO L276 IsEmpty]: Start isEmpty. Operand 772 states and 1061 transitions. [2019-10-02 13:03:58,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2019-10-02 13:03:58,085 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 13:03:58,085 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 13:03:58,086 INFO L418 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 13:03:58,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 13:03:58,086 INFO L82 PathProgramCache]: Analyzing trace with hash 1299605141, now seen corresponding path program 1 times [2019-10-02 13:03:58,086 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 13:03:58,087 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 13:03:58,091 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:03:58,091 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:03:58,091 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:03:58,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:03:58,597 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 13:03:58,598 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 13:03:58,598 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2019-10-02 13:03:58,598 INFO L454 AbstractCegarLoop]: Interpolant automaton has 24 states [2019-10-02 13:03:58,599 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2019-10-02 13:03:58,599 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=507, Unknown=0, NotChecked=0, Total=552 [2019-10-02 13:03:58,599 INFO L87 Difference]: Start difference. First operand 772 states and 1061 transitions. Second operand 24 states. [2019-10-02 13:03:59,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 13:03:59,271 INFO L93 Difference]: Finished difference Result 1339 states and 1830 transitions. [2019-10-02 13:03:59,272 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2019-10-02 13:03:59,272 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 202 [2019-10-02 13:03:59,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 13:03:59,278 INFO L225 Difference]: With dead ends: 1339 [2019-10-02 13:03:59,278 INFO L226 Difference]: Without dead ends: 879 [2019-10-02 13:03:59,281 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=85, Invalid=1037, Unknown=0, NotChecked=0, Total=1122 [2019-10-02 13:03:59,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 879 states. [2019-10-02 13:03:59,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 879 to 874. [2019-10-02 13:03:59,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 874 states. [2019-10-02 13:03:59,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 874 states to 874 states and 1190 transitions. [2019-10-02 13:03:59,320 INFO L78 Accepts]: Start accepts. Automaton has 874 states and 1190 transitions. Word has length 202 [2019-10-02 13:03:59,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 13:03:59,321 INFO L475 AbstractCegarLoop]: Abstraction has 874 states and 1190 transitions. [2019-10-02 13:03:59,321 INFO L476 AbstractCegarLoop]: Interpolant automaton has 24 states. [2019-10-02 13:03:59,321 INFO L276 IsEmpty]: Start isEmpty. Operand 874 states and 1190 transitions. [2019-10-02 13:03:59,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2019-10-02 13:03:59,326 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 13:03:59,326 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] [2019-10-02 13:03:59,326 INFO L418 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 13:03:59,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 13:03:59,327 INFO L82 PathProgramCache]: Analyzing trace with hash 1826249361, now seen corresponding path program 1 times [2019-10-02 13:03:59,327 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 13:03:59,327 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 13:03:59,331 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:03:59,331 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:03:59,331 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:03:59,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:03:59,538 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 13:03:59,538 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 13:03:59,539 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-02 13:03:59,539 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-02 13:03:59,539 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-02 13:03:59,540 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-02 13:03:59,540 INFO L87 Difference]: Start difference. First operand 874 states and 1190 transitions. Second operand 8 states. [2019-10-02 13:04:04,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 13:04:04,167 INFO L93 Difference]: Finished difference Result 2574 states and 3521 transitions. [2019-10-02 13:04:04,168 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-10-02 13:04:04,168 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 233 [2019-10-02 13:04:04,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 13:04:04,184 INFO L225 Difference]: With dead ends: 2574 [2019-10-02 13:04:04,184 INFO L226 Difference]: Without dead ends: 2036 [2019-10-02 13:04:04,190 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 13:04:04,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2036 states. [2019-10-02 13:04:04,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2036 to 2024. [2019-10-02 13:04:04,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2024 states. [2019-10-02 13:04:04,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2024 states to 2024 states and 2758 transitions. [2019-10-02 13:04:04,309 INFO L78 Accepts]: Start accepts. Automaton has 2024 states and 2758 transitions. Word has length 233 [2019-10-02 13:04:04,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 13:04:04,311 INFO L475 AbstractCegarLoop]: Abstraction has 2024 states and 2758 transitions. [2019-10-02 13:04:04,312 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-02 13:04:04,312 INFO L276 IsEmpty]: Start isEmpty. Operand 2024 states and 2758 transitions. [2019-10-02 13:04:04,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2019-10-02 13:04:04,319 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 13:04:04,319 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 13:04:04,319 INFO L418 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 13:04:04,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 13:04:04,320 INFO L82 PathProgramCache]: Analyzing trace with hash -1547017909, now seen corresponding path program 1 times [2019-10-02 13:04:04,320 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 13:04:04,320 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 13:04:04,324 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:04:04,325 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:04:04,325 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:04:04,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:04:04,792 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 13:04:04,793 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 13:04:04,793 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2019-10-02 13:04:04,794 INFO L454 AbstractCegarLoop]: Interpolant automaton has 20 states [2019-10-02 13:04:04,794 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2019-10-02 13:04:04,795 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=343, Unknown=0, NotChecked=0, Total=380 [2019-10-02 13:04:04,795 INFO L87 Difference]: Start difference. First operand 2024 states and 2758 transitions. Second operand 20 states. [2019-10-02 13:04:05,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 13:04:05,307 INFO L93 Difference]: Finished difference Result 3396 states and 4594 transitions. [2019-10-02 13:04:05,308 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2019-10-02 13:04:05,308 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 234 [2019-10-02 13:04:05,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 13:04:05,324 INFO L225 Difference]: With dead ends: 3396 [2019-10-02 13:04:05,325 INFO L226 Difference]: Without dead ends: 1752 [2019-10-02 13:04:05,332 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=69, Invalid=687, Unknown=0, NotChecked=0, Total=756 [2019-10-02 13:04:05,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1752 states. [2019-10-02 13:04:05,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1752 to 1742. [2019-10-02 13:04:05,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1742 states. [2019-10-02 13:04:05,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1742 states to 1742 states and 2369 transitions. [2019-10-02 13:04:05,415 INFO L78 Accepts]: Start accepts. Automaton has 1742 states and 2369 transitions. Word has length 234 [2019-10-02 13:04:05,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 13:04:05,416 INFO L475 AbstractCegarLoop]: Abstraction has 1742 states and 2369 transitions. [2019-10-02 13:04:05,416 INFO L476 AbstractCegarLoop]: Interpolant automaton has 20 states. [2019-10-02 13:04:05,416 INFO L276 IsEmpty]: Start isEmpty. Operand 1742 states and 2369 transitions. [2019-10-02 13:04:05,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2019-10-02 13:04:05,423 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 13:04:05,423 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 13:04:05,424 INFO L418 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 13:04:05,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 13:04:05,424 INFO L82 PathProgramCache]: Analyzing trace with hash -558509607, now seen corresponding path program 1 times [2019-10-02 13:04:05,425 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 13:04:05,425 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 13:04:05,429 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:04:05,429 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:04:05,429 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:04:05,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:04:05,660 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 13:04:05,660 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-02 13:04:05,660 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 13:04:05,802 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:04:06,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:04:06,434 INFO L256 TraceCheckSpWp]: Trace formula consists of 2798 conjuncts, 8 conjunts are in the unsatisfiable core [2019-10-02 13:04:06,454 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-02 13:04:06,772 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 13:04:06,784 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-02 13:04:06,785 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [7] total 14 [2019-10-02 13:04:06,788 INFO L454 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-10-02 13:04:06,788 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-10-02 13:04:06,790 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2019-10-02 13:04:06,790 INFO L87 Difference]: Start difference. First operand 1742 states and 2369 transitions. Second operand 14 states. [2019-10-02 13:04:11,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 13:04:11,986 INFO L93 Difference]: Finished difference Result 6583 states and 9273 transitions. [2019-10-02 13:04:11,986 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2019-10-02 13:04:11,986 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 243 [2019-10-02 13:04:11,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 13:04:12,024 INFO L225 Difference]: With dead ends: 6583 [2019-10-02 13:04:12,024 INFO L226 Difference]: Without dead ends: 4877 [2019-10-02 13:04:12,037 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 272 GetRequests, 243 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=135, Invalid=795, Unknown=0, NotChecked=0, Total=930 [2019-10-02 13:04:12,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4877 states. [2019-10-02 13:04:12,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4877 to 4869. [2019-10-02 13:04:12,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4869 states. [2019-10-02 13:04:12,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4869 states to 4869 states and 6778 transitions. [2019-10-02 13:04:12,369 INFO L78 Accepts]: Start accepts. Automaton has 4869 states and 6778 transitions. Word has length 243 [2019-10-02 13:04:12,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 13:04:12,370 INFO L475 AbstractCegarLoop]: Abstraction has 4869 states and 6778 transitions. [2019-10-02 13:04:12,370 INFO L476 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-10-02 13:04:12,370 INFO L276 IsEmpty]: Start isEmpty. Operand 4869 states and 6778 transitions. [2019-10-02 13:04:12,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2019-10-02 13:04:12,382 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 13:04:12,383 INFO L411 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 13:04:12,383 INFO L418 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 13:04:12,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 13:04:12,383 INFO L82 PathProgramCache]: Analyzing trace with hash -2028134971, now seen corresponding path program 1 times [2019-10-02 13:04:12,384 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 13:04:12,384 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 13:04:12,392 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:04:12,392 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:04:12,392 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:04:12,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:04:12,622 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 13:04:12,622 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-02 13:04:12,622 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 13:04:12,774 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:04:13,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:04:13,425 INFO L256 TraceCheckSpWp]: Trace formula consists of 2800 conjuncts, 6 conjunts are in the unsatisfiable core [2019-10-02 13:04:13,442 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-02 13:04:13,583 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 13:04:13,599 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-02 13:04:13,600 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [5] total 10 [2019-10-02 13:04:13,600 INFO L454 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-02 13:04:13,601 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-02 13:04:13,603 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2019-10-02 13:04:13,603 INFO L87 Difference]: Start difference. First operand 4869 states and 6778 transitions. Second operand 10 states. [2019-10-02 13:04:17,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 13:04:17,029 INFO L93 Difference]: Finished difference Result 18570 states and 26844 transitions. [2019-10-02 13:04:17,029 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-10-02 13:04:17,030 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 245 [2019-10-02 13:04:17,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 13:04:17,131 INFO L225 Difference]: With dead ends: 18570 [2019-10-02 13:04:17,132 INFO L226 Difference]: Without dead ends: 13752 [2019-10-02 13:04:17,160 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 267 GetRequests, 249 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=81, Invalid=299, Unknown=0, NotChecked=0, Total=380 [2019-10-02 13:04:17,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13752 states. [2019-10-02 13:04:17,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13752 to 13658. [2019-10-02 13:04:17,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13658 states. [2019-10-02 13:04:17,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13658 states to 13658 states and 19422 transitions. [2019-10-02 13:04:17,808 INFO L78 Accepts]: Start accepts. Automaton has 13658 states and 19422 transitions. Word has length 245 [2019-10-02 13:04:17,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 13:04:17,809 INFO L475 AbstractCegarLoop]: Abstraction has 13658 states and 19422 transitions. [2019-10-02 13:04:17,809 INFO L476 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-02 13:04:17,809 INFO L276 IsEmpty]: Start isEmpty. Operand 13658 states and 19422 transitions. [2019-10-02 13:04:17,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2019-10-02 13:04:17,829 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 13:04:17,829 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, 1, 1, 1, 1, 1, 1] [2019-10-02 13:04:17,830 INFO L418 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 13:04:17,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 13:04:17,830 INFO L82 PathProgramCache]: Analyzing trace with hash -233304132, now seen corresponding path program 1 times [2019-10-02 13:04:17,830 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 13:04:17,831 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 13:04:17,834 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:04:17,835 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:04:17,835 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:04:17,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:04:18,043 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 13:04:18,043 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-02 13:04:18,043 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 13:04:18,290 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:04:18,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:04:18,789 INFO L256 TraceCheckSpWp]: Trace formula consists of 2801 conjuncts, 8 conjunts are in the unsatisfiable core [2019-10-02 13:04:18,798 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-02 13:04:18,963 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [MP z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (4)] Exception during sending of exit command (exit): Broken pipe [2019-10-02 13:04:18,979 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-02 13:04:18,980 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [7] total 14 [2019-10-02 13:04:18,981 INFO L454 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-10-02 13:04:18,981 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-10-02 13:04:18,981 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2019-10-02 13:04:18,981 INFO L87 Difference]: Start difference. First operand 13658 states and 19422 transitions. Second operand 14 states. [2019-10-02 13:04:23,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 13:04:23,815 INFO L93 Difference]: Finished difference Result 54171 states and 79824 transitions. [2019-10-02 13:04:23,816 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2019-10-02 13:04:23,816 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 246 [2019-10-02 13:04:23,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 13:04:24,067 INFO L225 Difference]: With dead ends: 54171 [2019-10-02 13:04:24,067 INFO L226 Difference]: Without dead ends: 40552 [2019-10-02 13:04:24,156 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 277 GetRequests, 248 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 13:04:24,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40552 states. [2019-10-02 13:04:27,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40552 to 40344. [2019-10-02 13:04:27,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40344 states. [2019-10-02 13:04:27,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40344 states to 40344 states and 58656 transitions. [2019-10-02 13:04:27,389 INFO L78 Accepts]: Start accepts. Automaton has 40344 states and 58656 transitions. Word has length 246 [2019-10-02 13:04:27,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 13:04:27,390 INFO L475 AbstractCegarLoop]: Abstraction has 40344 states and 58656 transitions. [2019-10-02 13:04:27,390 INFO L476 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-10-02 13:04:27,390 INFO L276 IsEmpty]: Start isEmpty. Operand 40344 states and 58656 transitions. [2019-10-02 13:04:27,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2019-10-02 13:04:27,414 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 13:04:27,414 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, 1, 1, 1, 1, 1, 1] [2019-10-02 13:04:27,415 INFO L418 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 13:04:27,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 13:04:27,415 INFO L82 PathProgramCache]: Analyzing trace with hash 196733555, now seen corresponding path program 1 times [2019-10-02 13:04:27,415 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 13:04:27,416 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 13:04:27,421 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:04:27,422 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:04:27,422 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:04:27,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:04:27,967 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 13:04:27,968 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-02 13:04:27,968 INFO L224 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 13:04:28,112 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:04:28,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:04:28,503 INFO L256 TraceCheckSpWp]: Trace formula consists of 2803 conjuncts, 8 conjunts are in the unsatisfiable core [2019-10-02 13:04:28,510 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-02 13:04:28,874 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 13:04:28,881 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-02 13:04:28,881 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [29] total 36 [2019-10-02 13:04:28,882 INFO L454 AbstractCegarLoop]: Interpolant automaton has 36 states [2019-10-02 13:04:28,882 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2019-10-02 13:04:28,883 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=1180, Unknown=0, NotChecked=0, Total=1260 [2019-10-02 13:04:28,883 INFO L87 Difference]: Start difference. First operand 40344 states and 58656 transitions. Second operand 36 states. [2019-10-02 13:05:29,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 13:05:29,087 INFO L93 Difference]: Finished difference Result 454554 states and 722917 transitions. [2019-10-02 13:05:29,087 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 119 states. [2019-10-02 13:05:29,088 INFO L78 Accepts]: Start accepts. Automaton has 36 states. Word has length 248 [2019-10-02 13:05:29,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 13:05:30,786 INFO L225 Difference]: With dead ends: 454554 [2019-10-02 13:05:30,787 INFO L226 Difference]: Without dead ends: 413914 [2019-10-02 13:05:31,058 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 449 GetRequests, 299 SyntacticMatches, 0 SemanticMatches, 150 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6755 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=1920, Invalid=21032, Unknown=0, NotChecked=0, Total=22952 [2019-10-02 13:05:31,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 413914 states. [2019-10-02 13:05:54,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 413914 to 300784. [2019-10-02 13:05:54,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 300784 states. [2019-10-02 13:05:55,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300784 states to 300784 states and 468510 transitions. [2019-10-02 13:05:56,024 INFO L78 Accepts]: Start accepts. Automaton has 300784 states and 468510 transitions. Word has length 248 [2019-10-02 13:05:56,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 13:05:56,025 INFO L475 AbstractCegarLoop]: Abstraction has 300784 states and 468510 transitions. [2019-10-02 13:05:56,025 INFO L476 AbstractCegarLoop]: Interpolant automaton has 36 states. [2019-10-02 13:05:56,025 INFO L276 IsEmpty]: Start isEmpty. Operand 300784 states and 468510 transitions. [2019-10-02 13:05:56,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2019-10-02 13:05:56,157 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 13:05:56,157 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 13:05:56,158 INFO L418 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 13:05:56,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 13:05:56,158 INFO L82 PathProgramCache]: Analyzing trace with hash 1113226205, now seen corresponding path program 1 times [2019-10-02 13:05:56,158 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 13:05:56,158 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 13:05:56,162 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:05:56,162 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:05:56,162 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:05:56,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:05:56,699 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 13:05:56,699 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-02 13:05:56,699 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 13:05:56,843 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:05:57,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:05:57,247 INFO L256 TraceCheckSpWp]: Trace formula consists of 2804 conjuncts, 6 conjunts are in the unsatisfiable core [2019-10-02 13:05:57,254 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-02 13:05:58,589 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 13:05:58,596 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-02 13:05:58,597 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [29] total 34 [2019-10-02 13:05:58,597 INFO L454 AbstractCegarLoop]: Interpolant automaton has 34 states [2019-10-02 13:05:58,598 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2019-10-02 13:05:58,598 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=1048, Unknown=0, NotChecked=0, Total=1122 [2019-10-02 13:05:58,598 INFO L87 Difference]: Start difference. First operand 300784 states and 468510 transitions. Second operand 34 states. [2019-10-02 13:08:33,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 13:08:33,671 INFO L93 Difference]: Finished difference Result 2053574 states and 3348613 transitions. [2019-10-02 13:08:33,671 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 121 states. [2019-10-02 13:08:33,671 INFO L78 Accepts]: Start accepts. Automaton has 34 states. Word has length 249 [2019-10-02 13:08:33,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 13:08:42,944 INFO L225 Difference]: With dead ends: 2053574 [2019-10-02 13:08:42,944 INFO L226 Difference]: Without dead ends: 1748801 [2019-10-02 13:08:44,327 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 456 GetRequests, 306 SyntacticMatches, 0 SemanticMatches, 150 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6966 ImplicationChecksByTransitivity, 5.4s TimeCoverageRelationStatistics Valid=1908, Invalid=21044, Unknown=0, NotChecked=0, Total=22952 [2019-10-02 13:08:46,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1748801 states.