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/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf -i ../../../trunk/examples/svcomp/product-lines/email_spec27_product13.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-673a906-m [2019-10-03 02:51:41,511 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-03 02:51:41,513 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-03 02:51:41,530 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-03 02:51:41,530 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-03 02:51:41,532 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-03 02:51:41,534 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-03 02:51:41,537 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-03 02:51:41,539 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-03 02:51:41,540 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-03 02:51:41,541 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-03 02:51:41,542 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-03 02:51:41,542 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-03 02:51:41,543 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-03 02:51:41,544 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-03 02:51:41,546 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-03 02:51:41,546 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-03 02:51:41,547 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-03 02:51:41,549 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-03 02:51:41,552 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-03 02:51:41,553 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-03 02:51:41,554 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-03 02:51:41,556 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-03 02:51:41,556 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-03 02:51:41,559 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-03 02:51:41,559 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-03 02:51:41,560 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-03 02:51:41,561 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-03 02:51:41,561 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-03 02:51:41,562 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-03 02:51:41,562 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-03 02:51:41,563 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-03 02:51:41,564 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-03 02:51:41,564 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-03 02:51:41,565 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-03 02:51:41,566 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-03 02:51:41,566 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-03 02:51:41,567 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-03 02:51:41,567 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-03 02:51:41,568 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-03 02:51:41,568 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-03 02:51:41,569 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf [2019-10-03 02:51:41,589 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-03 02:51:41,590 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-03 02:51:41,590 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-10-03 02:51:41,590 INFO L138 SettingsManager]: * Log level for plugins=info [2019-10-03 02:51:41,591 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-03 02:51:41,591 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-03 02:51:41,591 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-10-03 02:51:41,592 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-10-03 02:51:41,592 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-03 02:51:41,592 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-10-03 02:51:41,593 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-03 02:51:41,593 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-03 02:51:41,593 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-03 02:51:41,593 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-03 02:51:41,594 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-03 02:51:41,594 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-03 02:51:41,594 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-03 02:51:41,594 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-03 02:51:41,594 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-03 02:51:41,595 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-03 02:51:41,595 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-03 02:51:41,595 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-10-03 02:51:41,595 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-03 02:51:41,595 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-03 02:51:41,596 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-03 02:51:41,596 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-03 02:51:41,596 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-03 02:51:41,596 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-03 02:51:41,596 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-03 02:51:41,597 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-10-03 02:51:41,634 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-03 02:51:41,645 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-03 02:51:41,649 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-03 02:51:41,650 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-03 02:51:41,651 INFO L275 PluginConnector]: CDTParser initialized [2019-10-03 02:51:41,651 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec27_product13.cil.c [2019-10-03 02:51:41,716 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ed7a630d3/fbc28c5ee3c0446c98de87b53000d8f4/FLAG2968a2c63 [2019-10-03 02:51:42,338 INFO L306 CDTParser]: Found 1 translation units. [2019-10-03 02:51:42,339 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec27_product13.cil.c [2019-10-03 02:51:42,360 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ed7a630d3/fbc28c5ee3c0446c98de87b53000d8f4/FLAG2968a2c63 [2019-10-03 02:51:42,574 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ed7a630d3/fbc28c5ee3c0446c98de87b53000d8f4 [2019-10-03 02:51:42,583 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-03 02:51:42,585 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-03 02:51:42,586 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-03 02:51:42,586 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-03 02:51:42,589 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-03 02:51:42,590 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.10 02:51:42" (1/1) ... [2019-10-03 02:51:42,593 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7201854e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:51:42, skipping insertion in model container [2019-10-03 02:51:42,594 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.10 02:51:42" (1/1) ... [2019-10-03 02:51:42,601 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-03 02:51:42,676 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-03 02:51:43,471 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-03 02:51:43,488 INFO L188 MainTranslator]: Completed pre-run [2019-10-03 02:51:43,574 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-03 02:51:43,652 INFO L192 MainTranslator]: Completed translation [2019-10-03 02:51:43,653 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:51:43 WrapperNode [2019-10-03 02:51:43,653 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-03 02:51:43,654 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-03 02:51:43,654 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-03 02:51:43,654 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-03 02:51:43,669 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:51:43" (1/1) ... [2019-10-03 02:51:43,669 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:51:43" (1/1) ... [2019-10-03 02:51:43,698 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:51:43" (1/1) ... [2019-10-03 02:51:43,698 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:51:43" (1/1) ... [2019-10-03 02:51:43,749 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:51:43" (1/1) ... [2019-10-03 02:51:43,769 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:51:43" (1/1) ... [2019-10-03 02:51:43,780 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:51:43" (1/1) ... [2019-10-03 02:51:43,797 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-03 02:51:43,801 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-03 02:51:43,801 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-03 02:51:43,801 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-03 02:51:43,802 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:51:43" (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 [2019-10-03 02:51:43,868 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-03 02:51:43,868 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-03 02:51:43,869 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-03 02:51:43,869 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-03 02:51:43,869 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-03 02:51:43,869 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-03 02:51:43,870 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-03 02:51:43,870 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-03 02:51:43,870 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-03 02:51:43,870 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-03 02:51:43,871 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-03 02:51:43,871 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-03 02:51:43,871 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-03 02:51:43,871 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-03 02:51:43,871 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-03 02:51:43,872 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Sign [2019-10-03 02:51:43,872 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-03 02:51:43,872 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-03 02:51:43,872 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-03 02:51:43,872 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-03 02:51:43,873 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-03 02:51:43,873 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-03 02:51:43,873 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-03 02:51:43,873 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-03 02:51:43,874 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-10-03 02:51:43,874 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-03 02:51:43,874 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-03 02:51:43,874 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-03 02:51:43,874 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-03 02:51:43,875 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-03 02:51:43,875 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-03 02:51:43,875 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-03 02:51:43,875 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-03 02:51:43,875 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-03 02:51:43,875 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-03 02:51:43,876 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-03 02:51:43,876 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-03 02:51:43,876 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-03 02:51:43,876 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-03 02:51:43,876 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-03 02:51:43,876 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-03 02:51:43,877 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-03 02:51:43,877 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-03 02:51:43,877 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-03 02:51:43,877 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-03 02:51:43,877 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-03 02:51:43,878 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-03 02:51:43,878 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-03 02:51:43,878 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-03 02:51:43,878 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-03 02:51:43,878 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-03 02:51:43,878 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-03 02:51:43,879 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-03 02:51:43,879 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-03 02:51:43,879 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-03 02:51:43,879 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-03 02:51:43,879 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-03 02:51:43,879 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-03 02:51:43,880 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-03 02:51:43,880 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-03 02:51:43,880 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-03 02:51:43,880 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-03 02:51:43,880 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-03 02:51:43,881 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-03 02:51:43,881 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-03 02:51:43,881 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-03 02:51:43,881 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-03 02:51:43,881 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-03 02:51:43,882 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-03 02:51:43,882 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-03 02:51:43,882 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-03 02:51:43,882 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-03 02:51:43,882 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-03 02:51:43,882 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-03 02:51:43,883 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-03 02:51:43,883 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-03 02:51:43,883 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-03 02:51:43,883 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-03 02:51:43,883 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-03 02:51:43,883 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-03 02:51:43,884 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-03 02:51:43,884 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-03 02:51:43,884 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-03 02:51:43,884 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-03 02:51:43,884 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__VerifyForward_spec__1 [2019-10-03 02:51:43,885 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-03 02:51:43,885 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-03 02:51:43,885 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-03 02:51:43,885 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-03 02:51:43,885 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-03 02:51:43,885 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-03 02:51:43,886 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-03 02:51:43,886 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-03 02:51:43,886 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-03 02:51:43,886 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-03 02:51:43,886 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-03 02:51:43,887 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-03 02:51:43,887 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-03 02:51:43,887 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-03 02:51:43,887 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-03 02:51:43,887 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-03 02:51:43,887 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-03 02:51:43,888 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-03 02:51:43,888 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-03 02:51:43,888 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-03 02:51:43,888 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-03 02:51:43,888 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-03 02:51:43,888 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-03 02:51:43,889 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-03 02:51:43,889 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-03 02:51:43,889 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-03 02:51:43,889 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-03 02:51:43,889 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-03 02:51:43,889 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-03 02:51:43,889 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-03 02:51:43,890 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-03 02:51:43,890 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-03 02:51:43,890 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-03 02:51:43,890 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-03 02:51:43,890 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-03 02:51:43,890 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-03 02:51:43,891 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-03 02:51:43,891 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-03 02:51:43,891 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-03 02:51:43,891 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-03 02:51:43,891 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-03 02:51:43,891 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-03 02:51:43,891 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-03 02:51:43,892 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-03 02:51:43,892 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-03 02:51:43,892 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-03 02:51:43,892 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-03 02:51:43,892 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-03 02:51:43,892 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-03 02:51:43,893 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-03 02:51:43,893 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-03 02:51:43,893 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-03 02:51:43,893 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-03 02:51:43,893 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-03 02:51:43,893 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-03 02:51:43,893 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-03 02:51:43,894 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-03 02:51:43,894 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-03 02:51:43,894 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-03 02:51:43,894 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-03 02:51:43,894 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-03 02:51:43,894 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Sign [2019-10-03 02:51:43,895 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-03 02:51:43,895 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-03 02:51:43,895 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-03 02:51:43,895 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-03 02:51:43,895 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-03 02:51:43,895 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-03 02:51:43,895 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-03 02:51:43,896 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-03 02:51:43,896 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-03 02:51:43,896 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-03 02:51:43,896 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-03 02:51:43,896 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-03 02:51:43,896 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-03 02:51:43,896 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-03 02:51:43,896 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-03 02:51:43,897 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-03 02:51:43,897 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-03 02:51:43,897 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-03 02:51:43,897 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-03 02:51:43,897 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-03 02:51:43,897 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-03 02:51:43,897 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-03 02:51:43,897 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-03 02:51:43,898 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-03 02:51:43,898 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__VerifyForward_spec__1 [2019-10-03 02:51:43,898 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-10-03 02:51:43,898 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-03 02:51:43,898 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-03 02:51:43,898 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-03 02:51:43,898 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-03 02:51:43,899 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-03 02:51:43,899 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-03 02:51:43,899 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-03 02:51:43,899 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-03 02:51:43,899 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-03 02:51:43,899 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-03 02:51:43,899 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-03 02:51:43,900 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-03 02:51:43,900 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-03 02:51:43,900 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-03 02:51:43,900 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-03 02:51:43,900 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-03 02:51:43,900 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-03 02:51:43,900 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-03 02:51:43,900 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-03 02:51:43,901 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-03 02:51:43,901 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-03 02:51:43,901 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-03 02:51:43,901 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-03 02:51:43,901 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-03 02:51:43,901 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-03 02:51:43,901 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-03 02:51:43,902 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-03 02:51:43,902 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-03 02:51:43,902 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-03 02:51:43,902 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-03 02:51:43,902 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-03 02:51:43,902 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-03 02:51:43,902 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-03 02:51:43,903 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-03 02:51:43,903 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-03 02:51:43,903 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-03 02:51:43,903 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-03 02:51:43,903 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-03 02:51:43,903 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-03 02:51:43,903 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-03 02:51:43,904 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-03 02:51:43,904 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-03 02:51:43,904 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-03 02:51:43,904 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-03 02:51:43,904 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-03 02:51:43,904 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-03 02:51:43,904 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-03 02:51:43,905 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-03 02:51:43,905 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-03 02:51:43,905 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-03 02:51:43,905 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-03 02:51:43,905 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-03 02:51:43,905 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-03 02:51:43,905 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-03 02:51:43,905 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-03 02:51:43,906 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-03 02:51:43,906 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-03 02:51:43,906 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-03 02:51:45,910 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-03 02:51:45,910 INFO L283 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-03 02:51:45,912 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 02:51:45 BoogieIcfgContainer [2019-10-03 02:51:45,912 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-03 02:51:45,913 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-03 02:51:45,913 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-03 02:51:45,916 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-03 02:51:45,917 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.10 02:51:42" (1/3) ... [2019-10-03 02:51:45,918 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b5dac7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.10 02:51:45, skipping insertion in model container [2019-10-03 02:51:45,918 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:51:43" (2/3) ... [2019-10-03 02:51:45,919 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b5dac7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.10 02:51:45, skipping insertion in model container [2019-10-03 02:51:45,919 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 02:51:45" (3/3) ... [2019-10-03 02:51:45,921 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec27_product13.cil.c [2019-10-03 02:51:45,930 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-03 02:51:45,939 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-03 02:51:45,956 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-03 02:51:45,982 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-10-03 02:51:45,982 INFO L378 AbstractCegarLoop]: Hoare is false [2019-10-03 02:51:45,982 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-03 02:51:45,982 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-03 02:51:45,982 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-03 02:51:45,983 INFO L382 AbstractCegarLoop]: Difference is false [2019-10-03 02:51:45,983 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-03 02:51:45,983 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-03 02:51:46,008 INFO L276 IsEmpty]: Start isEmpty. Operand 449 states. [2019-10-03 02:51:46,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2019-10-03 02:51:46,037 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:51:46,038 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:51:46,041 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:51:46,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:51:46,047 INFO L82 PathProgramCache]: Analyzing trace with hash 1066825624, now seen corresponding path program 1 times [2019-10-03 02:51:46,049 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:51:46,108 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:51:46,108 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:51:46,108 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:51:46,108 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:51:46,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:51:46,618 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-03 02:51:46,620 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:51:46,621 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-03 02:51:46,621 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:51:46,627 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-03 02:51:46,642 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-03 02:51:46,643 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-03 02:51:46,646 INFO L87 Difference]: Start difference. First operand 449 states. Second operand 2 states. [2019-10-03 02:51:46,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:51:46,692 INFO L93 Difference]: Finished difference Result 418 states and 555 transitions. [2019-10-03 02:51:46,692 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-03 02:51:46,694 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 177 [2019-10-03 02:51:46,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:51:46,713 INFO L225 Difference]: With dead ends: 418 [2019-10-03 02:51:46,713 INFO L226 Difference]: Without dead ends: 409 [2019-10-03 02:51:46,714 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 [2019-10-03 02:51:46,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 409 states. [2019-10-03 02:51:46,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 409 to 409. [2019-10-03 02:51:46,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 409 states. [2019-10-03 02:51:46,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 409 states to 409 states and 544 transitions. [2019-10-03 02:51:46,792 INFO L78 Accepts]: Start accepts. Automaton has 409 states and 544 transitions. Word has length 177 [2019-10-03 02:51:46,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:51:46,795 INFO L475 AbstractCegarLoop]: Abstraction has 409 states and 544 transitions. [2019-10-03 02:51:46,795 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-03 02:51:46,795 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states and 544 transitions. [2019-10-03 02:51:46,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2019-10-03 02:51:46,802 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:51:46,803 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:51:46,803 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:51:46,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:51:46,804 INFO L82 PathProgramCache]: Analyzing trace with hash -455066040, now seen corresponding path program 1 times [2019-10-03 02:51:46,804 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:51:46,809 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:51:46,810 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:51:46,810 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:51:46,810 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:51:46,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:51:47,036 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-03 02:51:47,036 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:51:47,037 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-03 02:51:47,037 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:51:47,039 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-03 02:51:47,039 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-03 02:51:47,039 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-03 02:51:47,040 INFO L87 Difference]: Start difference. First operand 409 states and 544 transitions. Second operand 3 states. [2019-10-03 02:51:47,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:51:47,095 INFO L93 Difference]: Finished difference Result 412 states and 547 transitions. [2019-10-03 02:51:47,098 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-03 02:51:47,098 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 178 [2019-10-03 02:51:47,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:51:47,105 INFO L225 Difference]: With dead ends: 412 [2019-10-03 02:51:47,105 INFO L226 Difference]: Without dead ends: 412 [2019-10-03 02:51:47,106 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 [2019-10-03 02:51:47,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 412 states. [2019-10-03 02:51:47,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 412 to 411. [2019-10-03 02:51:47,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 411 states. [2019-10-03 02:51:47,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 411 states to 411 states and 546 transitions. [2019-10-03 02:51:47,161 INFO L78 Accepts]: Start accepts. Automaton has 411 states and 546 transitions. Word has length 178 [2019-10-03 02:51:47,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:51:47,161 INFO L475 AbstractCegarLoop]: Abstraction has 411 states and 546 transitions. [2019-10-03 02:51:47,162 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-03 02:51:47,162 INFO L276 IsEmpty]: Start isEmpty. Operand 411 states and 546 transitions. [2019-10-03 02:51:47,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2019-10-03 02:51:47,169 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:51:47,169 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:51:47,170 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:51:47,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:51:47,170 INFO L82 PathProgramCache]: Analyzing trace with hash -1895632684, now seen corresponding path program 1 times [2019-10-03 02:51:47,170 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:51:47,178 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:51:47,181 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:51:47,181 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:51:47,182 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:51:47,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:51:47,470 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-03 02:51:47,470 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:51:47,471 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-03 02:51:47,471 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:51:47,473 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-03 02:51:47,476 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-03 02:51:47,477 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-03 02:51:47,477 INFO L87 Difference]: Start difference. First operand 411 states and 546 transitions. Second operand 3 states. [2019-10-03 02:51:47,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:51:47,527 INFO L93 Difference]: Finished difference Result 450 states and 613 transitions. [2019-10-03 02:51:47,530 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-03 02:51:47,531 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 184 [2019-10-03 02:51:47,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:51:47,539 INFO L225 Difference]: With dead ends: 450 [2019-10-03 02:51:47,539 INFO L226 Difference]: Without dead ends: 450 [2019-10-03 02:51:47,540 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 [2019-10-03 02:51:47,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 450 states. [2019-10-03 02:51:47,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 450 to 449. [2019-10-03 02:51:47,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 449 states. [2019-10-03 02:51:47,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 449 states to 449 states and 612 transitions. [2019-10-03 02:51:47,584 INFO L78 Accepts]: Start accepts. Automaton has 449 states and 612 transitions. Word has length 184 [2019-10-03 02:51:47,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:51:47,584 INFO L475 AbstractCegarLoop]: Abstraction has 449 states and 612 transitions. [2019-10-03 02:51:47,585 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-03 02:51:47,585 INFO L276 IsEmpty]: Start isEmpty. Operand 449 states and 612 transitions. [2019-10-03 02:51:47,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2019-10-03 02:51:47,596 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:51:47,596 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:51:47,597 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:51:47,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:51:47,597 INFO L82 PathProgramCache]: Analyzing trace with hash -1099086942, now seen corresponding path program 1 times [2019-10-03 02:51:47,598 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:51:47,605 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:51:47,605 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:51:47,605 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:51:47,606 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:51:47,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:51:48,013 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2019-10-03 02:51:48,014 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:51:48,014 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-03 02:51:48,015 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:51:48,016 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-03 02:51:48,017 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-03 02:51:48,017 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-03 02:51:48,017 INFO L87 Difference]: Start difference. First operand 449 states and 612 transitions. Second operand 8 states. [2019-10-03 02:51:48,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:51:48,094 INFO L93 Difference]: Finished difference Result 449 states and 611 transitions. [2019-10-03 02:51:48,094 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-03 02:51:48,094 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 185 [2019-10-03 02:51:48,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:51:48,098 INFO L225 Difference]: With dead ends: 449 [2019-10-03 02:51:48,098 INFO L226 Difference]: Without dead ends: 449 [2019-10-03 02:51:48,099 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 [2019-10-03 02:51:48,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 449 states. [2019-10-03 02:51:48,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 449 to 449. [2019-10-03 02:51:48,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 449 states. [2019-10-03 02:51:48,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 449 states to 449 states and 611 transitions. [2019-10-03 02:51:48,115 INFO L78 Accepts]: Start accepts. Automaton has 449 states and 611 transitions. Word has length 185 [2019-10-03 02:51:48,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:51:48,116 INFO L475 AbstractCegarLoop]: Abstraction has 449 states and 611 transitions. [2019-10-03 02:51:48,116 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-03 02:51:48,116 INFO L276 IsEmpty]: Start isEmpty. Operand 449 states and 611 transitions. [2019-10-03 02:51:48,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2019-10-03 02:51:48,120 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:51:48,121 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:51:48,121 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:51:48,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:51:48,121 INFO L82 PathProgramCache]: Analyzing trace with hash -1092785353, now seen corresponding path program 1 times [2019-10-03 02:51:48,122 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:51:48,126 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:51:48,126 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:51:48,126 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:51:48,126 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:51:48,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:51:48,334 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2019-10-03 02:51:48,335 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:51:48,335 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-03 02:51:48,335 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:51:48,336 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-03 02:51:48,336 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-03 02:51:48,337 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-03 02:51:48,337 INFO L87 Difference]: Start difference. First operand 449 states and 611 transitions. Second operand 7 states. [2019-10-03 02:51:50,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:51:50,584 INFO L93 Difference]: Finished difference Result 642 states and 851 transitions. [2019-10-03 02:51:50,584 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-03 02:51:50,584 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 192 [2019-10-03 02:51:50,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:51:50,590 INFO L225 Difference]: With dead ends: 642 [2019-10-03 02:51:50,590 INFO L226 Difference]: Without dead ends: 634 [2019-10-03 02:51:50,591 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2019-10-03 02:51:50,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 634 states. [2019-10-03 02:51:50,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 634 to 625. [2019-10-03 02:51:50,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 625 states. [2019-10-03 02:51:50,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 625 states to 625 states and 832 transitions. [2019-10-03 02:51:50,619 INFO L78 Accepts]: Start accepts. Automaton has 625 states and 832 transitions. Word has length 192 [2019-10-03 02:51:50,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:51:50,620 INFO L475 AbstractCegarLoop]: Abstraction has 625 states and 832 transitions. [2019-10-03 02:51:50,620 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-03 02:51:50,620 INFO L276 IsEmpty]: Start isEmpty. Operand 625 states and 832 transitions. [2019-10-03 02:51:50,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2019-10-03 02:51:50,625 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:51:50,625 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] [2019-10-03 02:51:50,625 INFO L418 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:51:50,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:51:50,626 INFO L82 PathProgramCache]: Analyzing trace with hash 562715681, now seen corresponding path program 1 times [2019-10-03 02:51:50,626 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:51:50,630 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:51:50,630 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:51:50,630 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:51:50,631 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:51:50,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:51:51,096 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2019-10-03 02:51:51,096 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:51:51,097 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2019-10-03 02:51:51,097 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:51:51,098 INFO L454 AbstractCegarLoop]: Interpolant automaton has 22 states [2019-10-03 02:51:51,098 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2019-10-03 02:51:51,099 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=421, Unknown=0, NotChecked=0, Total=462 [2019-10-03 02:51:51,099 INFO L87 Difference]: Start difference. First operand 625 states and 832 transitions. Second operand 22 states. [2019-10-03 02:51:51,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:51:51,602 INFO L93 Difference]: Finished difference Result 697 states and 914 transitions. [2019-10-03 02:51:51,603 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2019-10-03 02:51:51,603 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 193 [2019-10-03 02:51:51,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:51:51,608 INFO L225 Difference]: With dead ends: 697 [2019-10-03 02:51:51,608 INFO L226 Difference]: Without dead ends: 663 [2019-10-03 02:51:51,609 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=77, Invalid=853, Unknown=0, NotChecked=0, Total=930 [2019-10-03 02:51:51,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 663 states. [2019-10-03 02:51:51,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 663 to 659. [2019-10-03 02:51:51,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 659 states. [2019-10-03 02:51:51,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 659 states to 659 states and 872 transitions. [2019-10-03 02:51:51,637 INFO L78 Accepts]: Start accepts. Automaton has 659 states and 872 transitions. Word has length 193 [2019-10-03 02:51:51,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:51:51,639 INFO L475 AbstractCegarLoop]: Abstraction has 659 states and 872 transitions. [2019-10-03 02:51:51,639 INFO L476 AbstractCegarLoop]: Interpolant automaton has 22 states. [2019-10-03 02:51:51,639 INFO L276 IsEmpty]: Start isEmpty. Operand 659 states and 872 transitions. [2019-10-03 02:51:51,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2019-10-03 02:51:51,643 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:51:51,643 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:51:51,644 INFO L418 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:51:51,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:51:51,644 INFO L82 PathProgramCache]: Analyzing trace with hash 2094009423, now seen corresponding path program 1 times [2019-10-03 02:51:51,644 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:51:51,647 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:51:51,648 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:51:51,648 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:51:51,648 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:51:51,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:51:51,870 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2019-10-03 02:51:51,870 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:51:51,870 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-03 02:51:51,871 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:51:51,871 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-03 02:51:51,871 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-03 02:51:51,872 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-03 02:51:51,872 INFO L87 Difference]: Start difference. First operand 659 states and 872 transitions. Second operand 8 states. [2019-10-03 02:51:55,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:51:55,578 INFO L93 Difference]: Finished difference Result 1473 states and 1908 transitions. [2019-10-03 02:51:55,579 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-10-03 02:51:55,579 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 224 [2019-10-03 02:51:55,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:51:55,589 INFO L225 Difference]: With dead ends: 1473 [2019-10-03 02:51:55,589 INFO L226 Difference]: Without dead ends: 1473 [2019-10-03 02:51:55,590 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 [2019-10-03 02:51:55,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1473 states. [2019-10-03 02:51:55,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1473 to 1459. [2019-10-03 02:51:55,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1459 states. [2019-10-03 02:51:55,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1459 states to 1459 states and 1896 transitions. [2019-10-03 02:51:55,646 INFO L78 Accepts]: Start accepts. Automaton has 1459 states and 1896 transitions. Word has length 224 [2019-10-03 02:51:55,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:51:55,648 INFO L475 AbstractCegarLoop]: Abstraction has 1459 states and 1896 transitions. [2019-10-03 02:51:55,648 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-03 02:51:55,648 INFO L276 IsEmpty]: Start isEmpty. Operand 1459 states and 1896 transitions. [2019-10-03 02:51:55,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2019-10-03 02:51:55,653 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:51:55,654 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:51:55,654 INFO L418 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:51:55,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:51:55,654 INFO L82 PathProgramCache]: Analyzing trace with hash -458535677, now seen corresponding path program 1 times [2019-10-03 02:51:55,654 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:51:55,658 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:51:55,658 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:51:55,659 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:51:55,659 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:51:55,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:51:55,990 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2019-10-03 02:51:55,990 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:51:55,990 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2019-10-03 02:51:55,990 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:51:55,992 INFO L454 AbstractCegarLoop]: Interpolant automaton has 18 states [2019-10-03 02:51:55,993 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2019-10-03 02:51:55,993 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=273, Unknown=0, NotChecked=0, Total=306 [2019-10-03 02:51:55,993 INFO L87 Difference]: Start difference. First operand 1459 states and 1896 transitions. Second operand 18 states. [2019-10-03 02:51:56,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:51:56,417 INFO L93 Difference]: Finished difference Result 1183 states and 1554 transitions. [2019-10-03 02:51:56,417 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2019-10-03 02:51:56,418 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 225 [2019-10-03 02:51:56,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:51:56,426 INFO L225 Difference]: With dead ends: 1183 [2019-10-03 02:51:56,426 INFO L226 Difference]: Without dead ends: 1181 [2019-10-03 02:51:56,427 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=61, Invalid=539, Unknown=0, NotChecked=0, Total=600 [2019-10-03 02:51:56,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1181 states. [2019-10-03 02:51:56,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1181 to 1175. [2019-10-03 02:51:56,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1175 states. [2019-10-03 02:51:56,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1175 states to 1175 states and 1546 transitions. [2019-10-03 02:51:56,477 INFO L78 Accepts]: Start accepts. Automaton has 1175 states and 1546 transitions. Word has length 225 [2019-10-03 02:51:56,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:51:56,478 INFO L475 AbstractCegarLoop]: Abstraction has 1175 states and 1546 transitions. [2019-10-03 02:51:56,478 INFO L476 AbstractCegarLoop]: Interpolant automaton has 18 states. [2019-10-03 02:51:56,478 INFO L276 IsEmpty]: Start isEmpty. Operand 1175 states and 1546 transitions. [2019-10-03 02:51:56,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2019-10-03 02:51:56,484 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:51:56,484 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] [2019-10-03 02:51:56,484 INFO L418 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:51:56,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:51:56,485 INFO L82 PathProgramCache]: Analyzing trace with hash -2120696884, now seen corresponding path program 1 times [2019-10-03 02:51:56,485 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:51:56,488 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:51:56,489 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:51:56,489 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:51:56,489 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:51:56,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:51:56,736 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2019-10-03 02:51:56,736 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-03 02:51:56,737 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-10-03 02:51:56,738 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 235 with the following transitions: [2019-10-03 02:51:56,740 INFO L207 CegarAbsIntRunner]: [44], [46], [49], [51], [53], [56], [80], [83], [93], [94], [97], [106], [131], [147], [150], [164], [165], [167], [277], [279], [283], [286], [287], [288], [291], [297], [319], [322], [325], [334], [345], [346], [347], [349], [350], [353], [363], [364], [401], [403], [406], [408], [411], [417], [419], [422], [424], [426], [429], [437], [467], [470], [476], [622], [624], [625], [626], [632], [635], [641], [662], [665], [679], [708], [709], [710], [713], [719], [720], [722], [725], [728], [734], [735], [737], [741], [744], [768], [772], [775], [783], [786], [811], [817], [826], [830], [832], [834], [837], [844], [851], [854], [1113], [1167], [1189], [1190], [1193], [1199], [1200], [1203], [1204], [1207], [1210], [1241], [1242], [1244], [1357], [1360], [1374], [1380], [1383], [1392], [1393], [1396], [1405], [1408], [1411], [1420], [1581], [1583], [1585], [1587], [1588], [1600], [1601], [1602], [1603], [1604], [1605], [1606], [1618], [1628], [1629], [1630], [1631], [1632], [1633], [1636], [1637], [1638], [1639], [1640], [1642], [1643], [1644], [1645], [1652], [1658], [1659], [1660], [1672], [1673], [1674], [1675], [1676], [1677], [1678], [1679], [1680], [1681], [1682], [1683], [1684], [1685], [1702], [1703], [1716], [1717], [1718], [1720], [1721], [1722], [1723], [1724], [1725], [1726], [1727], [1728], [1729], [1730], [1731], [1732], [1733], [1734], [1736], [1737], [1738], [1739], [1748], [1749], [1750], [1770], [1772], [1773], [1774], [1776], [1777], [1778], [1779], [1780], [1781], [1782], [1794], [1795], [1796], [1797], [1798], [1799], [1800], [1801], [1802] [2019-10-03 02:51:56,786 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-10-03 02:51:56,786 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-03 02:51:56,900 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-10-03 02:51:56,901 INFO L272 AbstractInterpreter]: Visited 2 different actions 2 times. Never merged. Never widened. Performed 183 root evaluator evaluations with a maximum evaluation depth of 0. Performed 183 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 360 variables. [2019-10-03 02:51:56,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:51:56,906 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-10-03 02:51:56,985 INFO L219 lantSequenceWeakener]: Could never weaken! [2019-10-03 02:51:56,985 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-10-03 02:51:56,992 INFO L420 sIntCurrentIteration]: We unified 233 AI predicates to 233 [2019-10-03 02:51:56,993 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-10-03 02:51:56,993 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-03 02:51:56,994 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [7] total 7 [2019-10-03 02:51:56,994 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:51:56,995 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-03 02:51:56,995 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-03 02:51:56,995 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-03 02:51:56,995 INFO L87 Difference]: Start difference. First operand 1175 states and 1546 transitions. Second operand 2 states. [2019-10-03 02:51:56,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:51:56,996 INFO L93 Difference]: Finished difference Result 2 states and 1 transitions. [2019-10-03 02:51:56,996 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-03 02:51:56,996 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 234 [2019-10-03 02:51:56,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:51:56,997 INFO L225 Difference]: With dead ends: 2 [2019-10-03 02:51:56,997 INFO L226 Difference]: Without dead ends: 0 [2019-10-03 02:51:56,997 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 233 GetRequests, 233 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-03 02:51:56,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-03 02:51:56,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-03 02:51:56,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-03 02:51:56,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-03 02:51:56,998 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 234 [2019-10-03 02:51:56,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:51:56,998 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-03 02:51:56,998 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-03 02:51:56,999 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-03 02:51:56,999 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-03 02:51:57,008 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.10 02:51:57 BoogieIcfgContainer [2019-10-03 02:51:57,009 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-03 02:51:57,013 INFO L168 Benchmark]: Toolchain (without parser) took 14426.48 ms. Allocated memory was 131.6 MB in the beginning and 498.1 MB in the end (delta: 366.5 MB). Free memory was 83.1 MB in the beginning and 337.5 MB in the end (delta: -254.4 MB). Peak memory consumption was 112.1 MB. Max. memory is 7.1 GB. [2019-10-03 02:51:57,014 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 131.6 MB. Free memory was 104.5 MB in the beginning and 104.3 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2019-10-03 02:51:57,015 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1067.93 ms. Allocated memory was 131.6 MB in the beginning and 200.3 MB in the end (delta: 68.7 MB). Free memory was 82.9 MB in the beginning and 135.7 MB in the end (delta: -52.8 MB). Peak memory consumption was 33.1 MB. Max. memory is 7.1 GB. [2019-10-03 02:51:57,018 INFO L168 Benchmark]: Boogie Preprocessor took 146.18 ms. Allocated memory is still 200.3 MB. Free memory was 135.7 MB in the beginning and 127.0 MB in the end (delta: 8.7 MB). Peak memory consumption was 8.7 MB. Max. memory is 7.1 GB. [2019-10-03 02:51:57,020 INFO L168 Benchmark]: RCFGBuilder took 2111.87 ms. Allocated memory was 200.3 MB in the beginning and 268.4 MB in the end (delta: 68.2 MB). Free memory was 127.0 MB in the beginning and 180.7 MB in the end (delta: -53.7 MB). Peak memory consumption was 87.9 MB. Max. memory is 7.1 GB. [2019-10-03 02:51:57,023 INFO L168 Benchmark]: TraceAbstraction took 11096.14 ms. Allocated memory was 268.4 MB in the beginning and 498.1 MB in the end (delta: 229.6 MB). Free memory was 178.5 MB in the beginning and 337.5 MB in the end (delta: -159.0 MB). Peak memory consumption was 70.6 MB. Max. memory is 7.1 GB. [2019-10-03 02:51:57,029 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 131.6 MB. Free memory was 104.5 MB in the beginning and 104.3 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1067.93 ms. Allocated memory was 131.6 MB in the beginning and 200.3 MB in the end (delta: 68.7 MB). Free memory was 82.9 MB in the beginning and 135.7 MB in the end (delta: -52.8 MB). Peak memory consumption was 33.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 146.18 ms. Allocated memory is still 200.3 MB. Free memory was 135.7 MB in the beginning and 127.0 MB in the end (delta: 8.7 MB). Peak memory consumption was 8.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 2111.87 ms. Allocated memory was 200.3 MB in the beginning and 268.4 MB in the end (delta: 68.2 MB). Free memory was 127.0 MB in the beginning and 180.7 MB in the end (delta: -53.7 MB). Peak memory consumption was 87.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 11096.14 ms. Allocated memory was 268.4 MB in the beginning and 498.1 MB in the end (delta: 229.6 MB). Free memory was 178.5 MB in the beginning and 337.5 MB in the end (delta: -159.0 MB). Peak memory consumption was 70.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 2845]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 108 procedures, 731 locations, 1 error locations. SAFE Result, 11.0s OverallTime, 9 OverallIterations, 3 TraceHistogramMax, 7.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 4444 SDtfs, 2055 SDslu, 24740 SDs, 0 SdLazy, 5619 SolverSat, 790 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 357 GetRequests, 269 SyntacticMatches, 0 SemanticMatches, 88 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1459occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.1s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 1.0 AbsIntWeakeningRatio, 2.0128755364806867 AbsIntAvgWeakeningVarsNumRemoved, 0.0 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 9 MinimizatonAttempts, 35 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 1792 NumberOfCodeBlocks, 1792 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 1783 ConstructedInterpolants, 0 QuantifiedInterpolants, 481514 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 8 PerfectInterpolantSequences, 291/293 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...