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_spec4_product13.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-673a906-m [2019-10-03 02:53:02,499 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-03 02:53:02,501 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-03 02:53:02,514 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-03 02:53:02,514 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-03 02:53:02,515 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-03 02:53:02,517 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-03 02:53:02,519 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-03 02:53:02,521 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-03 02:53:02,522 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-03 02:53:02,523 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-03 02:53:02,524 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-03 02:53:02,524 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-03 02:53:02,525 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-03 02:53:02,526 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-03 02:53:02,527 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-03 02:53:02,528 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-03 02:53:02,529 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-03 02:53:02,531 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-03 02:53:02,533 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-03 02:53:02,534 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-03 02:53:02,536 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-03 02:53:02,537 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-03 02:53:02,538 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-03 02:53:02,540 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-03 02:53:02,540 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-03 02:53:02,540 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-03 02:53:02,541 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-03 02:53:02,542 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-03 02:53:02,543 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-03 02:53:02,543 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-03 02:53:02,544 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-03 02:53:02,545 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-03 02:53:02,546 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-03 02:53:02,547 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-03 02:53:02,547 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-03 02:53:02,548 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-03 02:53:02,548 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-03 02:53:02,548 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-03 02:53:02,549 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-03 02:53:02,550 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-03 02:53:02,550 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 02:53:02,566 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-03 02:53:02,566 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-03 02:53:02,566 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-10-03 02:53:02,566 INFO L138 SettingsManager]: * Log level for plugins=info [2019-10-03 02:53:02,567 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-03 02:53:02,567 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-03 02:53:02,568 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-10-03 02:53:02,568 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-10-03 02:53:02,568 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-03 02:53:02,568 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-10-03 02:53:02,569 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-03 02:53:02,569 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-03 02:53:02,569 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-03 02:53:02,569 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-03 02:53:02,570 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-03 02:53:02,570 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-03 02:53:02,570 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-03 02:53:02,570 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-03 02:53:02,570 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-03 02:53:02,571 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-03 02:53:02,571 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-03 02:53:02,571 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-10-03 02:53:02,571 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-03 02:53:02,571 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-03 02:53:02,572 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-03 02:53:02,572 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-03 02:53:02,572 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-03 02:53:02,572 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-03 02:53:02,572 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-03 02:53:02,573 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-10-03 02:53:02,604 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-03 02:53:02,618 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-03 02:53:02,621 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-03 02:53:02,623 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-03 02:53:02,624 INFO L275 PluginConnector]: CDTParser initialized [2019-10-03 02:53:02,625 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec4_product13.cil.c [2019-10-03 02:53:02,693 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5c7d22d2b/7a1f07f758844dd3bdfd2d42c78c965a/FLAG9c34efe3a [2019-10-03 02:53:03,320 INFO L306 CDTParser]: Found 1 translation units. [2019-10-03 02:53:03,320 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec4_product13.cil.c [2019-10-03 02:53:03,348 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5c7d22d2b/7a1f07f758844dd3bdfd2d42c78c965a/FLAG9c34efe3a [2019-10-03 02:53:03,465 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5c7d22d2b/7a1f07f758844dd3bdfd2d42c78c965a [2019-10-03 02:53:03,477 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-03 02:53:03,479 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-03 02:53:03,480 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-03 02:53:03,480 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-03 02:53:03,484 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-03 02:53:03,485 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.10 02:53:03" (1/1) ... [2019-10-03 02:53:03,488 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63d512b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:53:03, skipping insertion in model container [2019-10-03 02:53:03,489 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.10 02:53:03" (1/1) ... [2019-10-03 02:53:03,497 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-03 02:53:03,596 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-03 02:53:04,350 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-03 02:53:04,367 INFO L188 MainTranslator]: Completed pre-run [2019-10-03 02:53:04,479 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-03 02:53:04,579 INFO L192 MainTranslator]: Completed translation [2019-10-03 02:53:04,579 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:53:04 WrapperNode [2019-10-03 02:53:04,580 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-03 02:53:04,581 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-03 02:53:04,581 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-03 02:53:04,581 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-03 02:53:04,596 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:53:04" (1/1) ... [2019-10-03 02:53:04,596 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:53:04" (1/1) ... [2019-10-03 02:53:04,629 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:53:04" (1/1) ... [2019-10-03 02:53:04,630 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:53:04" (1/1) ... [2019-10-03 02:53:04,683 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:53:04" (1/1) ... [2019-10-03 02:53:04,708 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:53:04" (1/1) ... [2019-10-03 02:53:04,720 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:53:04" (1/1) ... [2019-10-03 02:53:04,738 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-03 02:53:04,739 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-03 02:53:04,739 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-03 02:53:04,740 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-03 02:53:04,741 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:53:04" (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 02:53:04,833 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-03 02:53:04,833 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-03 02:53:04,834 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-03 02:53:04,834 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__SignForward_spec__1 [2019-10-03 02:53:04,834 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-03 02:53:04,834 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-03 02:53:04,835 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-03 02:53:04,835 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-03 02:53:04,835 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-03 02:53:04,835 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-03 02:53:04,835 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-03 02:53:04,836 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-03 02:53:04,836 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-03 02:53:04,836 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-03 02:53:04,836 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-03 02:53:04,836 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-03 02:53:04,837 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-03 02:53:04,837 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-03 02:53:04,837 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-03 02:53:04,837 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-03 02:53:04,838 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-03 02:53:04,838 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-03 02:53:04,838 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-03 02:53:04,838 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-03 02:53:04,838 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-03 02:53:04,839 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-03 02:53:04,839 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-03 02:53:04,839 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-03 02:53:04,839 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-03 02:53:04,839 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-03 02:53:04,839 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-03 02:53:04,840 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-03 02:53:04,840 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-03 02:53:04,840 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-03 02:53:04,840 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-03 02:53:04,840 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-03 02:53:04,840 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-03 02:53:04,840 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-03 02:53:04,841 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-03 02:53:04,841 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-03 02:53:04,841 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-03 02:53:04,841 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-03 02:53:04,841 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-03 02:53:04,842 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-03 02:53:04,842 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-03 02:53:04,842 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-03 02:53:04,842 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-03 02:53:04,842 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-03 02:53:04,843 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-03 02:53:04,843 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-03 02:53:04,843 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-03 02:53:04,843 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-03 02:53:04,844 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-03 02:53:04,844 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-03 02:53:04,844 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-03 02:53:04,844 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-03 02:53:04,844 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-03 02:53:04,845 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-03 02:53:04,845 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-03 02:53:04,845 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-03 02:53:04,845 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-03 02:53:04,846 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-03 02:53:04,846 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-03 02:53:04,846 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-03 02:53:04,846 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-03 02:53:04,847 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-03 02:53:04,847 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-03 02:53:04,847 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-03 02:53:04,847 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-03 02:53:04,848 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-03 02:53:04,848 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-03 02:53:04,848 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-03 02:53:04,848 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-03 02:53:04,848 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-03 02:53:04,848 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-03 02:53:04,849 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-03 02:53:04,849 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-03 02:53:04,849 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-03 02:53:04,849 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-03 02:53:04,850 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-03 02:53:04,850 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-03 02:53:04,850 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-03 02:53:04,850 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-03 02:53:04,850 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-03 02:53:04,850 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-03 02:53:04,851 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-03 02:53:04,851 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-03 02:53:04,851 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-03 02:53:04,851 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-03 02:53:04,851 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-03 02:53:04,851 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-10-03 02:53:04,852 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-03 02:53:04,852 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-03 02:53:04,852 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-03 02:53:04,852 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-03 02:53:04,852 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-03 02:53:04,853 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-03 02:53:04,853 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-03 02:53:04,853 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-03 02:53:04,853 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-03 02:53:04,853 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-03 02:53:04,854 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-03 02:53:04,854 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-03 02:53:04,854 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Sign [2019-10-03 02:53:04,854 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-03 02:53:04,855 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-03 02:53:04,855 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-03 02:53:04,855 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-03 02:53:04,856 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-03 02:53:04,856 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-03 02:53:04,856 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-03 02:53:04,856 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-03 02:53:04,857 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-03 02:53:04,857 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-03 02:53:04,857 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__SignForward_spec__1 [2019-10-03 02:53:04,857 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-03 02:53:04,858 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-03 02:53:04,858 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-03 02:53:04,858 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-03 02:53:04,858 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-03 02:53:04,858 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-03 02:53:04,859 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-03 02:53:04,859 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-03 02:53:04,859 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-03 02:53:04,859 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-03 02:53:04,859 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-03 02:53:04,860 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-03 02:53:04,860 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-03 02:53:04,860 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-03 02:53:04,860 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-03 02:53:04,861 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-03 02:53:04,861 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-03 02:53:04,861 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-03 02:53:04,861 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-03 02:53:04,862 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-03 02:53:04,862 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-03 02:53:04,862 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-03 02:53:04,862 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-03 02:53:04,862 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-03 02:53:04,863 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-03 02:53:04,863 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-03 02:53:04,863 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-03 02:53:04,863 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-03 02:53:04,863 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-03 02:53:04,864 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-03 02:53:04,864 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-03 02:53:04,864 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-03 02:53:04,864 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-03 02:53:04,864 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-03 02:53:04,865 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-03 02:53:04,865 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-03 02:53:04,865 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-03 02:53:04,865 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-03 02:53:04,865 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-03 02:53:04,866 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-03 02:53:04,866 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-03 02:53:04,866 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-03 02:53:04,866 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-03 02:53:04,866 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-03 02:53:04,866 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-03 02:53:04,867 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-03 02:53:04,867 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-03 02:53:04,867 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-03 02:53:04,867 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-03 02:53:04,867 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-03 02:53:04,867 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-03 02:53:04,868 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-03 02:53:04,868 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-03 02:53:04,868 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-03 02:53:04,868 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-03 02:53:04,868 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-03 02:53:04,868 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-03 02:53:04,869 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-03 02:53:04,869 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-03 02:53:04,869 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-03 02:53:04,869 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-03 02:53:04,869 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-03 02:53:04,869 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-03 02:53:04,870 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-03 02:53:04,870 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-03 02:53:04,870 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-03 02:53:04,870 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-03 02:53:04,870 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-03 02:53:04,870 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-03 02:53:04,870 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-03 02:53:04,871 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-03 02:53:04,871 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-03 02:53:04,871 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-03 02:53:04,871 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-03 02:53:04,871 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-03 02:53:04,871 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-03 02:53:04,871 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-03 02:53:04,872 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-03 02:53:04,872 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-03 02:53:04,872 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-03 02:53:04,872 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-03 02:53:04,872 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-03 02:53:04,872 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-03 02:53:04,872 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-03 02:53:04,873 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-03 02:53:04,873 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-03 02:53:04,873 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-03 02:53:04,873 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-03 02:53:04,873 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-03 02:53:04,873 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-03 02:53:04,874 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-03 02:53:04,874 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-03 02:53:04,874 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-03 02:53:04,874 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-03 02:53:04,874 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-03 02:53:04,874 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-03 02:53:04,874 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-03 02:53:04,875 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-03 02:53:04,875 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-03 02:53:04,875 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-03 02:53:04,875 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-03 02:53:04,875 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-03 02:53:04,875 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-03 02:53:04,875 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-03 02:53:04,876 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-03 02:53:04,876 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-03 02:53:04,876 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-03 02:53:04,876 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-03 02:53:04,876 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-10-03 02:53:04,876 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-03 02:53:04,877 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-03 02:53:04,877 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-03 02:53:04,877 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Sign [2019-10-03 02:53:04,877 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-03 02:53:04,877 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-03 02:53:04,877 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-03 02:53:07,278 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-03 02:53:07,279 INFO L283 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-03 02:53:07,281 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 02:53:07 BoogieIcfgContainer [2019-10-03 02:53:07,281 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-03 02:53:07,282 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-03 02:53:07,282 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-03 02:53:07,286 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-03 02:53:07,287 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.10 02:53:03" (1/3) ... [2019-10-03 02:53:07,288 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b5c74f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.10 02:53:07, skipping insertion in model container [2019-10-03 02:53:07,288 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:53:04" (2/3) ... [2019-10-03 02:53:07,288 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b5c74f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.10 02:53:07, skipping insertion in model container [2019-10-03 02:53:07,289 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 02:53:07" (3/3) ... [2019-10-03 02:53:07,291 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec4_product13.cil.c [2019-10-03 02:53:07,302 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-03 02:53:07,316 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-03 02:53:07,335 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-03 02:53:07,367 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-10-03 02:53:07,367 INFO L378 AbstractCegarLoop]: Hoare is false [2019-10-03 02:53:07,367 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-03 02:53:07,367 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-03 02:53:07,368 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-03 02:53:07,368 INFO L382 AbstractCegarLoop]: Difference is false [2019-10-03 02:53:07,368 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-03 02:53:07,368 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-03 02:53:07,409 INFO L276 IsEmpty]: Start isEmpty. Operand 447 states. [2019-10-03 02:53:07,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2019-10-03 02:53:07,448 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:53:07,450 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2019-10-03 02:53:07,453 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:53:07,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:53:07,459 INFO L82 PathProgramCache]: Analyzing trace with hash -319338325, now seen corresponding path program 1 times [2019-10-03 02:53:07,462 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:53:07,528 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:53:07,528 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:53:07,528 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:53:07,529 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:53:07,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:53:08,087 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-03 02:53:08,090 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:53:08,090 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-03 02:53:08,096 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:53:08,106 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-03 02:53:08,122 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-03 02:53:08,123 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-03 02:53:08,125 INFO L87 Difference]: Start difference. First operand 447 states. Second operand 2 states. [2019-10-03 02:53:08,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:53:08,192 INFO L93 Difference]: Finished difference Result 411 states and 546 transitions. [2019-10-03 02:53:08,193 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-03 02:53:08,194 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 148 [2019-10-03 02:53:08,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:53:08,213 INFO L225 Difference]: With dead ends: 411 [2019-10-03 02:53:08,214 INFO L226 Difference]: Without dead ends: 402 [2019-10-03 02:53:08,216 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 02:53:08,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 402 states. [2019-10-03 02:53:08,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 402 to 402. [2019-10-03 02:53:08,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 402 states. [2019-10-03 02:53:08,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 402 states to 402 states and 535 transitions. [2019-10-03 02:53:08,307 INFO L78 Accepts]: Start accepts. Automaton has 402 states and 535 transitions. Word has length 148 [2019-10-03 02:53:08,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:53:08,309 INFO L475 AbstractCegarLoop]: Abstraction has 402 states and 535 transitions. [2019-10-03 02:53:08,310 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-03 02:53:08,310 INFO L276 IsEmpty]: Start isEmpty. Operand 402 states and 535 transitions. [2019-10-03 02:53:08,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2019-10-03 02:53:08,314 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:53:08,314 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2019-10-03 02:53:08,315 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:53:08,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:53:08,315 INFO L82 PathProgramCache]: Analyzing trace with hash 2037182428, now seen corresponding path program 1 times [2019-10-03 02:53:08,315 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:53:08,319 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:53:08,320 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:53:08,320 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:53:08,320 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:53:08,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:53:08,575 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-03 02:53:08,576 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:53:08,576 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-03 02:53:08,576 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:53:08,578 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-03 02:53:08,578 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-03 02:53:08,579 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-03 02:53:08,579 INFO L87 Difference]: Start difference. First operand 402 states and 535 transitions. Second operand 3 states. [2019-10-03 02:53:08,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:53:08,631 INFO L93 Difference]: Finished difference Result 405 states and 538 transitions. [2019-10-03 02:53:08,632 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-03 02:53:08,633 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 149 [2019-10-03 02:53:08,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:53:08,638 INFO L225 Difference]: With dead ends: 405 [2019-10-03 02:53:08,638 INFO L226 Difference]: Without dead ends: 405 [2019-10-03 02:53:08,639 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 02:53:08,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 405 states. [2019-10-03 02:53:08,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 405 to 404. [2019-10-03 02:53:08,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 404 states. [2019-10-03 02:53:08,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 404 states to 404 states and 537 transitions. [2019-10-03 02:53:08,694 INFO L78 Accepts]: Start accepts. Automaton has 404 states and 537 transitions. Word has length 149 [2019-10-03 02:53:08,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:53:08,697 INFO L475 AbstractCegarLoop]: Abstraction has 404 states and 537 transitions. [2019-10-03 02:53:08,697 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-03 02:53:08,697 INFO L276 IsEmpty]: Start isEmpty. Operand 404 states and 537 transitions. [2019-10-03 02:53:08,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2019-10-03 02:53:08,700 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:53:08,700 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2019-10-03 02:53:08,701 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:53:08,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:53:08,701 INFO L82 PathProgramCache]: Analyzing trace with hash 33956208, now seen corresponding path program 1 times [2019-10-03 02:53:08,701 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:53:08,706 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:53:08,706 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:53:08,706 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:53:08,707 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:53:08,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:53:08,855 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-03 02:53:08,856 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:53:08,857 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-03 02:53:08,857 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:53:08,858 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-03 02:53:08,860 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-03 02:53:08,861 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-03 02:53:08,861 INFO L87 Difference]: Start difference. First operand 404 states and 537 transitions. Second operand 3 states. [2019-10-03 02:53:08,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:53:08,912 INFO L93 Difference]: Finished difference Result 443 states and 604 transitions. [2019-10-03 02:53:08,913 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-03 02:53:08,913 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 155 [2019-10-03 02:53:08,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:53:08,920 INFO L225 Difference]: With dead ends: 443 [2019-10-03 02:53:08,920 INFO L226 Difference]: Without dead ends: 443 [2019-10-03 02:53:08,921 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 02:53:08,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 443 states. [2019-10-03 02:53:08,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 443 to 442. [2019-10-03 02:53:08,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 442 states. [2019-10-03 02:53:08,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 442 states to 442 states and 603 transitions. [2019-10-03 02:53:08,964 INFO L78 Accepts]: Start accepts. Automaton has 442 states and 603 transitions. Word has length 155 [2019-10-03 02:53:08,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:53:08,966 INFO L475 AbstractCegarLoop]: Abstraction has 442 states and 603 transitions. [2019-10-03 02:53:08,966 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-03 02:53:08,966 INFO L276 IsEmpty]: Start isEmpty. Operand 442 states and 603 transitions. [2019-10-03 02:53:08,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2019-10-03 02:53:08,973 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:53:08,973 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2019-10-03 02:53:08,973 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:53:08,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:53:08,974 INFO L82 PathProgramCache]: Analyzing trace with hash 1421123809, now seen corresponding path program 1 times [2019-10-03 02:53:08,974 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:53:08,979 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:53:08,979 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:53:08,980 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:53:08,980 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:53:09,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:53:09,262 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-10-03 02:53:09,262 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:53:09,263 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-03 02:53:09,263 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:53:09,264 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-03 02:53:09,264 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-03 02:53:09,265 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-03 02:53:09,265 INFO L87 Difference]: Start difference. First operand 442 states and 603 transitions. Second operand 7 states. [2019-10-03 02:53:12,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:53:12,506 INFO L93 Difference]: Finished difference Result 623 states and 830 transitions. [2019-10-03 02:53:12,507 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-03 02:53:12,507 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 156 [2019-10-03 02:53:12,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:53:12,513 INFO L225 Difference]: With dead ends: 623 [2019-10-03 02:53:12,513 INFO L226 Difference]: Without dead ends: 621 [2019-10-03 02:53:12,513 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2019-10-03 02:53:12,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 621 states. [2019-10-03 02:53:12,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 621 to 612. [2019-10-03 02:53:12,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 612 states. [2019-10-03 02:53:12,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 612 states to 612 states and 819 transitions. [2019-10-03 02:53:12,541 INFO L78 Accepts]: Start accepts. Automaton has 612 states and 819 transitions. Word has length 156 [2019-10-03 02:53:12,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:53:12,542 INFO L475 AbstractCegarLoop]: Abstraction has 612 states and 819 transitions. [2019-10-03 02:53:12,542 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-03 02:53:12,542 INFO L276 IsEmpty]: Start isEmpty. Operand 612 states and 819 transitions. [2019-10-03 02:53:12,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2019-10-03 02:53:12,545 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:53:12,546 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2019-10-03 02:53:12,546 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:53:12,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:53:12,547 INFO L82 PathProgramCache]: Analyzing trace with hash -1352001188, now seen corresponding path program 1 times [2019-10-03 02:53:12,547 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:53:12,551 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:53:12,551 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:53:12,551 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:53:12,551 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:53:12,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:53:12,845 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-10-03 02:53:12,846 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:53:12,846 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2019-10-03 02:53:12,846 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:53:12,847 INFO L454 AbstractCegarLoop]: Interpolant automaton has 16 states [2019-10-03 02:53:12,847 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2019-10-03 02:53:12,847 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2019-10-03 02:53:12,848 INFO L87 Difference]: Start difference. First operand 612 states and 819 transitions. Second operand 16 states. [2019-10-03 02:53:13,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:53:13,228 INFO L93 Difference]: Finished difference Result 670 states and 892 transitions. [2019-10-03 02:53:13,231 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-10-03 02:53:13,232 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 157 [2019-10-03 02:53:13,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:53:13,236 INFO L225 Difference]: With dead ends: 670 [2019-10-03 02:53:13,237 INFO L226 Difference]: Without dead ends: 644 [2019-10-03 02:53:13,237 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=53, Invalid=409, Unknown=0, NotChecked=0, Total=462 [2019-10-03 02:53:13,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 644 states. [2019-10-03 02:53:13,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 644 to 640. [2019-10-03 02:53:13,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 640 states. [2019-10-03 02:53:13,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 640 states to 640 states and 854 transitions. [2019-10-03 02:53:13,265 INFO L78 Accepts]: Start accepts. Automaton has 640 states and 854 transitions. Word has length 157 [2019-10-03 02:53:13,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:53:13,266 INFO L475 AbstractCegarLoop]: Abstraction has 640 states and 854 transitions. [2019-10-03 02:53:13,266 INFO L476 AbstractCegarLoop]: Interpolant automaton has 16 states. [2019-10-03 02:53:13,266 INFO L276 IsEmpty]: Start isEmpty. Operand 640 states and 854 transitions. [2019-10-03 02:53:13,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2019-10-03 02:53:13,269 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:53:13,270 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2019-10-03 02:53:13,270 INFO L418 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:53:13,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:53:13,270 INFO L82 PathProgramCache]: Analyzing trace with hash -1213322281, now seen corresponding path program 1 times [2019-10-03 02:53:13,271 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:53:13,275 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:53:13,275 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:53:13,275 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:53:13,275 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:53:13,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:53:13,497 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-10-03 02:53:13,498 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:53:13,498 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-03 02:53:13,498 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:53:13,499 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-03 02:53:13,499 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-03 02:53:13,499 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-03 02:53:13,500 INFO L87 Difference]: Start difference. First operand 640 states and 854 transitions. Second operand 8 states. [2019-10-03 02:53:14,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:53:14,226 INFO L93 Difference]: Finished difference Result 1038 states and 1366 transitions. [2019-10-03 02:53:14,227 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-03 02:53:14,227 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 166 [2019-10-03 02:53:14,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:53:14,234 INFO L225 Difference]: With dead ends: 1038 [2019-10-03 02:53:14,235 INFO L226 Difference]: Without dead ends: 1036 [2019-10-03 02:53:14,235 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2019-10-03 02:53:14,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1036 states. [2019-10-03 02:53:14,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1036 to 1023. [2019-10-03 02:53:14,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1023 states. [2019-10-03 02:53:14,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1023 states to 1023 states and 1350 transitions. [2019-10-03 02:53:14,273 INFO L78 Accepts]: Start accepts. Automaton has 1023 states and 1350 transitions. Word has length 166 [2019-10-03 02:53:14,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:53:14,274 INFO L475 AbstractCegarLoop]: Abstraction has 1023 states and 1350 transitions. [2019-10-03 02:53:14,274 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-03 02:53:14,274 INFO L276 IsEmpty]: Start isEmpty. Operand 1023 states and 1350 transitions. [2019-10-03 02:53:14,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2019-10-03 02:53:14,278 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:53:14,278 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2019-10-03 02:53:14,279 INFO L418 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:53:14,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:53:14,279 INFO L82 PathProgramCache]: Analyzing trace with hash 1191367596, now seen corresponding path program 1 times [2019-10-03 02:53:14,279 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:53:14,284 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:53:14,284 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:53:14,284 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:53:14,285 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:53:14,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:53:14,544 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2019-10-03 02:53:14,544 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:53:14,544 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2019-10-03 02:53:14,544 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:53:14,545 INFO L454 AbstractCegarLoop]: Interpolant automaton has 15 states [2019-10-03 02:53:14,545 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2019-10-03 02:53:14,546 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2019-10-03 02:53:14,546 INFO L87 Difference]: Start difference. First operand 1023 states and 1350 transitions. Second operand 15 states. [2019-10-03 02:53:15,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:53:15,136 INFO L93 Difference]: Finished difference Result 1022 states and 1346 transitions. [2019-10-03 02:53:15,137 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-10-03 02:53:15,137 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 167 [2019-10-03 02:53:15,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:53:15,144 INFO L225 Difference]: With dead ends: 1022 [2019-10-03 02:53:15,144 INFO L226 Difference]: Without dead ends: 1022 [2019-10-03 02:53:15,145 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=87, Invalid=615, Unknown=0, NotChecked=0, Total=702 [2019-10-03 02:53:15,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1022 states. [2019-10-03 02:53:15,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1022 to 1021. [2019-10-03 02:53:15,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1021 states. [2019-10-03 02:53:15,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1021 states to 1021 states and 1345 transitions. [2019-10-03 02:53:15,179 INFO L78 Accepts]: Start accepts. Automaton has 1021 states and 1345 transitions. Word has length 167 [2019-10-03 02:53:15,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:53:15,180 INFO L475 AbstractCegarLoop]: Abstraction has 1021 states and 1345 transitions. [2019-10-03 02:53:15,180 INFO L476 AbstractCegarLoop]: Interpolant automaton has 15 states. [2019-10-03 02:53:15,180 INFO L276 IsEmpty]: Start isEmpty. Operand 1021 states and 1345 transitions. [2019-10-03 02:53:15,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2019-10-03 02:53:15,185 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:53:15,185 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2019-10-03 02:53:15,186 INFO L418 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:53:15,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:53:15,186 INFO L82 PathProgramCache]: Analyzing trace with hash 1987588104, now seen corresponding path program 2 times [2019-10-03 02:53:15,186 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:53:15,190 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:53:15,191 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:53:15,191 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:53:15,191 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:53:15,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:53:15,462 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2019-10-03 02:53:15,463 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-03 02:53:15,463 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-10-03 02:53:15,463 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-10-03 02:53:15,465 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-10-03 02:53:15,465 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-03 02:53:15,466 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-10-03 02:53:15,672 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-10-03 02:53:15,673 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2019-10-03 02:53:16,025 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2019-10-03 02:53:16,026 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-10-03 02:53:16,034 INFO L256 TraceCheckSpWp]: Trace formula consists of 1821 conjuncts, 10 conjunts are in the unsatisfiable core [2019-10-03 02:53:16,051 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-03 02:53:16,287 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2019-10-03 02:53:16,288 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-03 02:53:16,913 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [MP z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (2)] Exception during sending of exit command (exit): Stream closed [2019-10-03 02:53:16,931 INFO L312 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-03 02:53:16,931 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [11] total 23 [2019-10-03 02:53:16,931 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:53:16,933 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-03 02:53:16,933 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-03 02:53:16,934 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=452, Unknown=0, NotChecked=0, Total=506 [2019-10-03 02:53:16,934 INFO L87 Difference]: Start difference. First operand 1021 states and 1345 transitions. Second operand 8 states. [2019-10-03 02:53:17,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:53:17,758 INFO L93 Difference]: Finished difference Result 2000 states and 2654 transitions. [2019-10-03 02:53:17,758 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-10-03 02:53:17,758 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 167 [2019-10-03 02:53:17,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:53:17,773 INFO L225 Difference]: With dead ends: 2000 [2019-10-03 02:53:17,773 INFO L226 Difference]: Without dead ends: 1998 [2019-10-03 02:53:17,774 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 352 GetRequests, 323 SyntacticMatches, 2 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=98, Invalid=714, Unknown=0, NotChecked=0, Total=812 [2019-10-03 02:53:17,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1998 states. [2019-10-03 02:53:17,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1998 to 1989. [2019-10-03 02:53:17,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1989 states. [2019-10-03 02:53:17,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1989 states to 1989 states and 2643 transitions. [2019-10-03 02:53:17,845 INFO L78 Accepts]: Start accepts. Automaton has 1989 states and 2643 transitions. Word has length 167 [2019-10-03 02:53:17,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:53:17,845 INFO L475 AbstractCegarLoop]: Abstraction has 1989 states and 2643 transitions. [2019-10-03 02:53:17,846 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-03 02:53:17,846 INFO L276 IsEmpty]: Start isEmpty. Operand 1989 states and 2643 transitions. [2019-10-03 02:53:17,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2019-10-03 02:53:17,851 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:53:17,851 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 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] [2019-10-03 02:53:17,852 INFO L418 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:53:17,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:53:17,852 INFO L82 PathProgramCache]: Analyzing trace with hash -133141165, now seen corresponding path program 1 times [2019-10-03 02:53:17,852 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:53:17,857 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:53:17,857 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-10-03 02:53:17,857 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:53:17,857 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:53:17,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:53:18,099 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2019-10-03 02:53:18,099 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-03 02:53:18,099 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-10-03 02:53:18,100 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 169 with the following transitions: [2019-10-03 02:53:18,104 INFO L207 CegarAbsIntRunner]: [59], [62], [63], [66], [72], [73], [76], [85], [110], [126], [129], [143], [144], [146], [256], [258], [262], [265], [266], [311], [314], [323], [326], [328], [329], [332], [342], [599], [601], [602], [603], [639], [642], [656], [685], [688], [694], [695], [696], [697], [714], [716], [720], [723], [737], [741], [744], [762], [765], [796], [805], [809], [811], [813], [816], [823], [830], [833], [1041], [1043], [1046], [1048], [1051], [1111], [1183], [1187], [1198], [1201], [1240], [1242], [1355], [1358], [1360], [1363], [1372], [1378], [1381], [1390], [1444], [1447], [1456], [1579], [1581], [1583], [1585], [1586], [1608], [1618], [1619], [1620], [1621], [1622], [1623], [1626], [1627], [1628], [1629], [1630], [1632], [1633], [1634], [1635], [1648], [1649], [1690], [1691], [1704], [1710], [1711], [1712], [1713], [1714], [1715], [1716], [1717], [1718], [1719], [1720], [1721], [1722], [1723], [1724], [1726], [1727], [1728], [1729], [1760], [1762], [1763], [1764], [1765], [1766], [1768], [1769], [1770], [1772], [1773], [1774], [1775], [1776], [1777], [1778], [1790], [1791], [1792], [1793], [1794], [1795], [1796], [1797], [1798] [2019-10-03 02:53:18,155 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-10-03 02:53:18,155 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-03 02:53:18,300 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-10-03 02:53:18,302 INFO L272 AbstractInterpreter]: Visited 2 different actions 2 times. Never merged. Never widened. Performed 194 root evaluator evaluations with a maximum evaluation depth of 0. Performed 194 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 360 variables. [2019-10-03 02:53:18,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:53:18,308 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-10-03 02:53:18,380 INFO L219 lantSequenceWeakener]: Could never weaken! [2019-10-03 02:53:18,380 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-10-03 02:53:18,385 INFO L420 sIntCurrentIteration]: We unified 167 AI predicates to 167 [2019-10-03 02:53:18,385 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-10-03 02:53:18,386 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-03 02:53:18,387 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [11] total 11 [2019-10-03 02:53:18,387 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:53:18,388 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-03 02:53:18,388 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-03 02:53:18,389 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-03 02:53:18,389 INFO L87 Difference]: Start difference. First operand 1989 states and 2643 transitions. Second operand 2 states. [2019-10-03 02:53:18,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:53:18,390 INFO L93 Difference]: Finished difference Result 2 states and 1 transitions. [2019-10-03 02:53:18,390 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-03 02:53:18,390 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 168 [2019-10-03 02:53:18,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:53:18,390 INFO L225 Difference]: With dead ends: 2 [2019-10-03 02:53:18,390 INFO L226 Difference]: Without dead ends: 0 [2019-10-03 02:53:18,391 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 167 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 02:53:18,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-03 02:53:18,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-03 02:53:18,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-03 02:53:18,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-03 02:53:18,392 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 168 [2019-10-03 02:53:18,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:53:18,392 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-03 02:53:18,392 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-03 02:53:18,392 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-03 02:53:18,392 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-03 02:53:18,399 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.10 02:53:18 BoogieIcfgContainer [2019-10-03 02:53:18,399 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-03 02:53:18,403 INFO L168 Benchmark]: Toolchain (without parser) took 14922.20 ms. Allocated memory was 137.9 MB in the beginning and 499.6 MB in the end (delta: 361.8 MB). Free memory was 81.2 MB in the beginning and 260.7 MB in the end (delta: -179.5 MB). Peak memory consumption was 182.2 MB. Max. memory is 7.1 GB. [2019-10-03 02:53:18,404 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 137.9 MB. Free memory was 102.6 MB in the beginning and 102.4 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2019-10-03 02:53:18,405 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1100.00 ms. Allocated memory was 137.9 MB in the beginning and 200.3 MB in the end (delta: 62.4 MB). Free memory was 81.0 MB in the beginning and 138.7 MB in the end (delta: -57.7 MB). Peak memory consumption was 29.8 MB. Max. memory is 7.1 GB. [2019-10-03 02:53:18,406 INFO L168 Benchmark]: Boogie Preprocessor took 158.12 ms. Allocated memory is still 200.3 MB. Free memory was 138.7 MB in the beginning and 129.8 MB in the end (delta: 8.9 MB). Peak memory consumption was 8.9 MB. Max. memory is 7.1 GB. [2019-10-03 02:53:18,407 INFO L168 Benchmark]: RCFGBuilder took 2541.90 ms. Allocated memory was 200.3 MB in the beginning and 273.7 MB in the end (delta: 73.4 MB). Free memory was 129.8 MB in the beginning and 194.9 MB in the end (delta: -65.1 MB). Peak memory consumption was 90.8 MB. Max. memory is 7.1 GB. [2019-10-03 02:53:18,408 INFO L168 Benchmark]: TraceAbstraction took 11116.90 ms. Allocated memory was 273.7 MB in the beginning and 499.6 MB in the end (delta: 226.0 MB). Free memory was 194.9 MB in the beginning and 260.7 MB in the end (delta: -65.9 MB). Peak memory consumption was 160.1 MB. Max. memory is 7.1 GB. [2019-10-03 02:53:18,412 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 137.9 MB. Free memory was 102.6 MB in the beginning and 102.4 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1100.00 ms. Allocated memory was 137.9 MB in the beginning and 200.3 MB in the end (delta: 62.4 MB). Free memory was 81.0 MB in the beginning and 138.7 MB in the end (delta: -57.7 MB). Peak memory consumption was 29.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 158.12 ms. Allocated memory is still 200.3 MB. Free memory was 138.7 MB in the beginning and 129.8 MB in the end (delta: 8.9 MB). Peak memory consumption was 8.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 2541.90 ms. Allocated memory was 200.3 MB in the beginning and 273.7 MB in the end (delta: 73.4 MB). Free memory was 129.8 MB in the beginning and 194.9 MB in the end (delta: -65.1 MB). Peak memory consumption was 90.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 11116.90 ms. Allocated memory was 273.7 MB in the beginning and 499.6 MB in the end (delta: 226.0 MB). Free memory was 194.9 MB in the beginning and 260.7 MB in the end (delta: -65.9 MB). Peak memory consumption was 160.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 1866]: 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, 729 locations, 1 error locations. SAFE Result, 11.0s OverallTime, 9 OverallIterations, 3 TraceHistogramMax, 6.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 4454 SDtfs, 1998 SDslu, 21520 SDs, 0 SdLazy, 3138 SolverSat, 378 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 611 GetRequests, 513 SyntacticMatches, 2 SemanticMatches, 96 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1989occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.2s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 1.0 AbsIntWeakeningRatio, 2.2275449101796405 AbsIntAvgWeakeningVarsNumRemoved, 0.0 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 9 MinimizatonAttempts, 38 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.2s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 2.3s InterpolantComputationTime, 1600 NumberOfCodeBlocks, 1509 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 1756 ConstructedInterpolants, 0 QuantifiedInterpolants, 412486 SizeOfPredicates, 5 NumberOfNonLiveVariables, 1821 ConjunctsInSsa, 10 ConjunctsInUnsatCore, 11 InterpolantComputations, 9 PerfectInterpolantSequences, 364/370 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...