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_spec3_product19.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-10 02:40:48,441 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-10 02:40:48,443 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-10 02:40:48,455 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-10 02:40:48,456 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-10 02:40:48,457 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-10 02:40:48,458 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-10 02:40:48,470 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-10 02:40:48,472 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-10 02:40:48,473 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-10 02:40:48,476 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-10 02:40:48,477 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-10 02:40:48,478 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-10 02:40:48,481 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-10 02:40:48,483 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-10 02:40:48,487 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-10 02:40:48,488 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-10 02:40:48,491 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-10 02:40:48,494 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-10 02:40:48,497 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-10 02:40:48,502 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-10 02:40:48,504 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-10 02:40:48,508 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-10 02:40:48,509 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-10 02:40:48,512 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-10 02:40:48,512 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-10 02:40:48,513 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-10 02:40:48,515 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-10 02:40:48,517 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-10 02:40:48,518 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-10 02:40:48,518 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-10 02:40:48,519 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-10 02:40:48,520 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-10 02:40:48,521 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-10 02:40:48,522 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-10 02:40:48,522 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-10 02:40:48,523 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-10 02:40:48,523 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-10 02:40:48,523 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-10 02:40:48,524 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-10 02:40:48,525 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-10 02:40:48,525 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 [2019-09-10 02:40:48,543 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-10 02:40:48,544 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-10 02:40:48,544 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-10 02:40:48,544 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-10 02:40:48,546 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-10 02:40:48,546 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-10 02:40:48,546 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-10 02:40:48,547 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-10 02:40:48,547 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-10 02:40:48,547 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-10 02:40:48,549 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-10 02:40:48,549 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-10 02:40:48,549 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-10 02:40:48,550 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-10 02:40:48,550 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-10 02:40:48,550 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-10 02:40:48,550 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-10 02:40:48,550 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-10 02:40:48,550 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-10 02:40:48,551 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-10 02:40:48,551 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-10 02:40:48,551 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-10 02:40:48,551 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-10 02:40:48,551 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-10 02:40:48,552 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-10 02:40:48,552 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-10 02:40:48,552 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-10 02:40:48,552 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-10 02:40:48,552 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-10 02:40:48,553 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-10 02:40:48,582 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-10 02:40:48,598 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-10 02:40:48,603 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-10 02:40:48,605 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-10 02:40:48,605 INFO L275 PluginConnector]: CDTParser initialized [2019-09-10 02:40:48,606 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec3_product19.cil.c [2019-09-10 02:40:48,683 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/03f0267aa/3de9139f14914b5cb13a8f9a0eb9af3f/FLAG4413cc015 [2019-09-10 02:40:49,322 INFO L306 CDTParser]: Found 1 translation units. [2019-09-10 02:40:49,325 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec3_product19.cil.c [2019-09-10 02:40:49,359 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/03f0267aa/3de9139f14914b5cb13a8f9a0eb9af3f/FLAG4413cc015 [2019-09-10 02:40:49,495 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/03f0267aa/3de9139f14914b5cb13a8f9a0eb9af3f [2019-09-10 02:40:49,504 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-10 02:40:49,506 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-10 02:40:49,507 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-10 02:40:49,507 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-10 02:40:49,511 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-10 02:40:49,512 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 02:40:49" (1/1) ... [2019-09-10 02:40:49,515 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@84c5b01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:40:49, skipping insertion in model container [2019-09-10 02:40:49,515 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 02:40:49" (1/1) ... [2019-09-10 02:40:49,523 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-10 02:40:49,611 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-10 02:40:50,373 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 02:40:50,395 INFO L188 MainTranslator]: Completed pre-run [2019-09-10 02:40:50,545 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 02:40:50,630 INFO L192 MainTranslator]: Completed translation [2019-09-10 02:40:50,631 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:40:50 WrapperNode [2019-09-10 02:40:50,631 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-10 02:40:50,632 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-10 02:40:50,632 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-10 02:40:50,632 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-10 02:40:50,646 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:40:50" (1/1) ... [2019-09-10 02:40:50,647 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:40:50" (1/1) ... [2019-09-10 02:40:50,679 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:40:50" (1/1) ... [2019-09-10 02:40:50,679 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:40:50" (1/1) ... [2019-09-10 02:40:50,733 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:40:50" (1/1) ... [2019-09-10 02:40:50,756 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:40:50" (1/1) ... [2019-09-10 02:40:50,768 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:40:50" (1/1) ... [2019-09-10 02:40:50,789 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-10 02:40:50,790 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-10 02:40:50,790 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-10 02:40:50,790 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-10 02:40:50,797 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:40:50" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-10 02:40:50,857 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-10 02:40:50,857 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-10 02:40:50,857 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-09-10 02:40:50,858 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-09-10 02:40:50,858 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-09-10 02:40:50,858 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-09-10 02:40:50,858 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-09-10 02:40:50,859 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-09-10 02:40:50,859 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-09-10 02:40:50,859 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-09-10 02:40:50,859 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-09-10 02:40:50,859 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-09-10 02:40:50,860 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-09-10 02:40:50,860 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Forward [2019-09-10 02:40:50,860 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-09-10 02:40:50,860 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-09-10 02:40:50,861 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-09-10 02:40:50,861 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-09-10 02:40:50,861 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-09-10 02:40:50,861 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-09-10 02:40:50,861 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-09-10 02:40:50,862 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-09-10 02:40:50,862 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-09-10 02:40:50,862 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-09-10 02:40:50,862 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-09-10 02:40:50,863 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-09-10 02:40:50,863 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-09-10 02:40:50,863 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__SignVerify_spec__1 [2019-09-10 02:40:50,863 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__SignVerify_spec__2 [2019-09-10 02:40:50,863 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-09-10 02:40:50,864 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-09-10 02:40:50,864 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Forward [2019-09-10 02:40:50,864 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-09-10 02:40:50,864 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-09-10 02:40:50,864 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-09-10 02:40:50,865 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-09-10 02:40:50,865 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-09-10 02:40:50,865 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-09-10 02:40:50,865 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-09-10 02:40:50,865 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-09-10 02:40:50,865 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-09-10 02:40:50,866 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-09-10 02:40:50,866 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-09-10 02:40:50,866 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-09-10 02:40:50,866 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-09-10 02:40:50,866 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-09-10 02:40:50,867 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-09-10 02:40:50,867 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-09-10 02:40:50,867 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-09-10 02:40:50,867 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-09-10 02:40:50,867 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-09-10 02:40:50,867 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-09-10 02:40:50,868 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-09-10 02:40:50,868 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-09-10 02:40:50,868 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-09-10 02:40:50,868 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-09-10 02:40:50,868 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-09-10 02:40:50,869 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-09-10 02:40:50,869 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-09-10 02:40:50,869 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-09-10 02:40:50,869 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-09-10 02:40:50,869 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-09-10 02:40:50,870 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-09-10 02:40:50,870 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-09-10 02:40:50,870 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-09-10 02:40:50,870 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-09-10 02:40:50,870 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-09-10 02:40:50,871 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-09-10 02:40:50,871 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-09-10 02:40:50,871 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-09-10 02:40:50,871 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-09-10 02:40:50,871 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-09-10 02:40:50,871 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-09-10 02:40:50,872 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-09-10 02:40:50,872 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-10 02:40:50,872 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-09-10 02:40:50,872 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-09-10 02:40:50,872 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-09-10 02:40:50,873 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-09-10 02:40:50,873 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-09-10 02:40:50,873 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-09-10 02:40:50,873 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-09-10 02:40:50,873 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-09-10 02:40:50,874 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-09-10 02:40:50,874 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-09-10 02:40:50,874 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-09-10 02:40:50,874 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-09-10 02:40:50,874 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-09-10 02:40:50,875 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-09-10 02:40:50,875 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-09-10 02:40:50,875 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-09-10 02:40:50,875 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-09-10 02:40:50,875 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-09-10 02:40:50,875 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-09-10 02:40:50,875 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-09-10 02:40:50,876 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-09-10 02:40:50,876 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-09-10 02:40:50,876 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-09-10 02:40:50,876 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-09-10 02:40:50,876 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-09-10 02:40:50,876 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-09-10 02:40:50,876 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-09-10 02:40:50,877 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-09-10 02:40:50,877 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-09-10 02:40:50,877 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-09-10 02:40:50,877 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-09-10 02:40:50,877 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-09-10 02:40:50,877 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-09-10 02:40:50,878 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-09-10 02:40:50,878 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-09-10 02:40:50,878 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-09-10 02:40:50,878 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-09-10 02:40:50,878 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-10 02:40:50,878 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-10 02:40:50,878 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-09-10 02:40:50,879 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-09-10 02:40:50,879 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-10 02:40:50,879 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-09-10 02:40:50,879 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-09-10 02:40:50,879 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-09-10 02:40:50,879 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-09-10 02:40:50,880 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-09-10 02:40:50,880 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-09-10 02:40:50,880 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-09-10 02:40:50,880 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-09-10 02:40:50,880 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-09-10 02:40:50,880 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-09-10 02:40:50,880 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-09-10 02:40:50,881 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-09-10 02:40:50,881 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-09-10 02:40:50,881 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-09-10 02:40:50,881 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-09-10 02:40:50,881 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-09-10 02:40:50,881 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-09-10 02:40:50,882 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-09-10 02:40:50,882 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-09-10 02:40:50,882 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-09-10 02:40:50,882 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-09-10 02:40:50,882 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-09-10 02:40:50,882 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-09-10 02:40:50,883 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-09-10 02:40:50,883 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-09-10 02:40:50,883 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-09-10 02:40:50,883 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-09-10 02:40:50,883 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-09-10 02:40:50,883 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-09-10 02:40:50,884 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-09-10 02:40:50,884 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-09-10 02:40:50,884 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-09-10 02:40:50,884 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-09-10 02:40:50,884 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-09-10 02:40:50,884 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-09-10 02:40:50,884 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-09-10 02:40:50,885 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-09-10 02:40:50,885 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-09-10 02:40:50,885 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__SignVerify_spec__1 [2019-09-10 02:40:50,885 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-09-10 02:40:50,885 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-09-10 02:40:50,885 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Forward [2019-09-10 02:40:50,885 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__SignVerify_spec__2 [2019-09-10 02:40:50,886 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-09-10 02:40:50,886 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-09-10 02:40:50,886 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-09-10 02:40:50,886 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-09-10 02:40:50,886 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-09-10 02:40:50,886 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-09-10 02:40:50,886 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-09-10 02:40:50,887 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-09-10 02:40:50,887 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-09-10 02:40:50,887 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-09-10 02:40:50,887 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-09-10 02:40:50,887 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-09-10 02:40:50,887 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-09-10 02:40:50,887 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-09-10 02:40:50,888 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-09-10 02:40:50,888 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Forward [2019-09-10 02:40:50,888 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-09-10 02:40:50,888 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-09-10 02:40:50,888 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-09-10 02:40:50,888 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-09-10 02:40:50,888 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-09-10 02:40:50,889 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-09-10 02:40:50,889 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-09-10 02:40:50,889 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-09-10 02:40:50,889 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-09-10 02:40:50,889 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-09-10 02:40:50,889 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-09-10 02:40:50,889 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-09-10 02:40:50,890 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-09-10 02:40:50,890 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-09-10 02:40:50,890 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-09-10 02:40:50,890 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-09-10 02:40:50,890 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-09-10 02:40:50,890 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-09-10 02:40:50,890 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-09-10 02:40:50,891 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-09-10 02:40:50,891 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-09-10 02:40:50,891 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-09-10 02:40:50,891 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-09-10 02:40:50,891 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-09-10 02:40:50,891 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-09-10 02:40:50,891 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-09-10 02:40:50,892 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-09-10 02:40:50,892 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-09-10 02:40:50,892 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-10 02:40:50,892 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-09-10 02:40:50,892 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-09-10 02:40:50,892 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-09-10 02:40:50,892 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-09-10 02:40:50,893 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-09-10 02:40:50,893 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-09-10 02:40:50,893 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-09-10 02:40:50,893 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-09-10 02:40:50,893 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-09-10 02:40:50,893 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-09-10 02:40:50,893 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-09-10 02:40:50,894 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-09-10 02:40:50,894 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-09-10 02:40:50,894 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-09-10 02:40:50,894 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-09-10 02:40:50,894 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-09-10 02:40:50,894 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-10 02:40:50,894 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-10 02:40:50,895 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-09-10 02:40:50,895 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-10 02:40:50,895 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-10 02:40:50,895 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-10 02:40:50,895 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-10 02:40:50,895 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-09-10 02:40:50,896 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-10 02:40:50,896 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-09-10 02:40:50,896 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-09-10 02:40:50,896 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-10 02:40:50,896 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-09-10 02:40:50,896 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-09-10 02:40:50,896 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-09-10 02:40:50,896 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-10 02:40:50,897 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-10 02:40:50,897 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-10 02:40:53,137 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-10 02:40:53,137 INFO L283 CfgBuilder]: Removed 4 assume(true) statements. [2019-09-10 02:40:53,139 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 02:40:53 BoogieIcfgContainer [2019-09-10 02:40:53,139 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-10 02:40:53,140 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-10 02:40:53,141 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-10 02:40:53,144 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-10 02:40:53,145 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.09 02:40:49" (1/3) ... [2019-09-10 02:40:53,146 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e22e16c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 02:40:53, skipping insertion in model container [2019-09-10 02:40:53,146 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:40:50" (2/3) ... [2019-09-10 02:40:53,147 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e22e16c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 02:40:53, skipping insertion in model container [2019-09-10 02:40:53,147 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 02:40:53" (3/3) ... [2019-09-10 02:40:53,148 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec3_product19.cil.c [2019-09-10 02:40:53,159 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-10 02:40:53,172 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-10 02:40:53,190 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-10 02:40:53,231 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-10 02:40:53,231 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-10 02:40:53,231 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-10 02:40:53,231 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-10 02:40:53,231 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-10 02:40:53,231 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-10 02:40:53,232 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-10 02:40:53,232 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-10 02:40:53,271 INFO L276 IsEmpty]: Start isEmpty. Operand 506 states. [2019-09-10 02:40:53,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2019-09-10 02:40:53,309 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:40:53,310 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:40:53,313 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:40:53,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:40:53,320 INFO L82 PathProgramCache]: Analyzing trace with hash 1399924535, now seen corresponding path program 1 times [2019-09-10 02:40:53,322 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:40:53,380 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:40:53,381 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:40:53,381 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:40:53,381 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:40:53,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:40:53,938 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-09-10 02:40:53,941 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:40:53,941 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-10 02:40:53,941 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:40:53,948 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-10 02:40:53,964 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-10 02:40:53,965 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 02:40:53,967 INFO L87 Difference]: Start difference. First operand 506 states. Second operand 2 states. [2019-09-10 02:40:54,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:40:54,023 INFO L93 Difference]: Finished difference Result 492 states and 648 transitions. [2019-09-10 02:40:54,023 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-10 02:40:54,024 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 170 [2019-09-10 02:40:54,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:40:54,048 INFO L225 Difference]: With dead ends: 492 [2019-09-10 02:40:54,049 INFO L226 Difference]: Without dead ends: 483 [2019-09-10 02:40:54,053 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 02:40:54,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 483 states. [2019-09-10 02:40:54,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 483 to 483. [2019-09-10 02:40:54,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 483 states. [2019-09-10 02:40:54,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 637 transitions. [2019-09-10 02:40:54,147 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 637 transitions. Word has length 170 [2019-09-10 02:40:54,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:40:54,150 INFO L475 AbstractCegarLoop]: Abstraction has 483 states and 637 transitions. [2019-09-10 02:40:54,150 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-10 02:40:54,150 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 637 transitions. [2019-09-10 02:40:54,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2019-09-10 02:40:54,155 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:40:54,156 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:40:54,156 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:40:54,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:40:54,157 INFO L82 PathProgramCache]: Analyzing trace with hash 1985432290, now seen corresponding path program 1 times [2019-09-10 02:40:54,157 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:40:54,158 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:40:54,158 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:40:54,158 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:40:54,158 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:40:54,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:40:54,519 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-09-10 02:40:54,520 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:40:54,520 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 02:40:54,520 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:40:54,523 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 02:40:54,524 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 02:40:54,524 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 02:40:54,525 INFO L87 Difference]: Start difference. First operand 483 states and 637 transitions. Second operand 3 states. [2019-09-10 02:40:54,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:40:54,590 INFO L93 Difference]: Finished difference Result 486 states and 640 transitions. [2019-09-10 02:40:54,590 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 02:40:54,591 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 171 [2019-09-10 02:40:54,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:40:54,605 INFO L225 Difference]: With dead ends: 486 [2019-09-10 02:40:54,606 INFO L226 Difference]: Without dead ends: 486 [2019-09-10 02:40:54,607 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 02:40:54,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 486 states. [2019-09-10 02:40:54,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 486 to 485. [2019-09-10 02:40:54,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 485 states. [2019-09-10 02:40:54,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 485 states to 485 states and 639 transitions. [2019-09-10 02:40:54,664 INFO L78 Accepts]: Start accepts. Automaton has 485 states and 639 transitions. Word has length 171 [2019-09-10 02:40:54,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:40:54,667 INFO L475 AbstractCegarLoop]: Abstraction has 485 states and 639 transitions. [2019-09-10 02:40:54,667 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 02:40:54,668 INFO L276 IsEmpty]: Start isEmpty. Operand 485 states and 639 transitions. [2019-09-10 02:40:54,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2019-09-10 02:40:54,674 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:40:54,674 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:40:54,675 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:40:54,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:40:54,675 INFO L82 PathProgramCache]: Analyzing trace with hash 582779830, now seen corresponding path program 1 times [2019-09-10 02:40:54,675 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:40:54,676 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:40:54,676 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:40:54,677 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:40:54,677 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:40:54,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:40:54,965 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-09-10 02:40:54,966 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:40:54,966 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 02:40:54,966 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:40:54,968 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 02:40:54,970 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 02:40:54,971 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 02:40:54,971 INFO L87 Difference]: Start difference. First operand 485 states and 639 transitions. Second operand 3 states. [2019-09-10 02:40:55,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:40:55,007 INFO L93 Difference]: Finished difference Result 526 states and 709 transitions. [2019-09-10 02:40:55,007 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 02:40:55,007 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 177 [2019-09-10 02:40:55,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:40:55,013 INFO L225 Difference]: With dead ends: 526 [2019-09-10 02:40:55,014 INFO L226 Difference]: Without dead ends: 526 [2019-09-10 02:40:55,014 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 02:40:55,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 526 states. [2019-09-10 02:40:55,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 526 to 525. [2019-09-10 02:40:55,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 525 states. [2019-09-10 02:40:55,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 525 states to 525 states and 708 transitions. [2019-09-10 02:40:55,046 INFO L78 Accepts]: Start accepts. Automaton has 525 states and 708 transitions. Word has length 177 [2019-09-10 02:40:55,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:40:55,048 INFO L475 AbstractCegarLoop]: Abstraction has 525 states and 708 transitions. [2019-09-10 02:40:55,048 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 02:40:55,048 INFO L276 IsEmpty]: Start isEmpty. Operand 525 states and 708 transitions. [2019-09-10 02:40:55,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2019-09-10 02:40:55,055 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:40:55,056 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:40:55,056 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:40:55,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:40:55,057 INFO L82 PathProgramCache]: Analyzing trace with hash 452092045, now seen corresponding path program 1 times [2019-09-10 02:40:55,057 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:40:55,058 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:40:55,058 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:40:55,058 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:40:55,059 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:40:55,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:40:55,430 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2019-09-10 02:40:55,431 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:40:55,431 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-09-10 02:40:55,431 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:40:55,431 INFO L454 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-09-10 02:40:55,432 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-09-10 02:40:55,432 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2019-09-10 02:40:55,432 INFO L87 Difference]: Start difference. First operand 525 states and 708 transitions. Second operand 12 states. [2019-09-10 02:41:06,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:41:06,963 INFO L93 Difference]: Finished difference Result 2234 states and 2907 transitions. [2019-09-10 02:41:06,964 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2019-09-10 02:41:06,964 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 178 [2019-09-10 02:41:06,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:41:06,979 INFO L225 Difference]: With dead ends: 2234 [2019-09-10 02:41:06,980 INFO L226 Difference]: Without dead ends: 1949 [2019-09-10 02:41:06,981 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 434 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=330, Invalid=1310, Unknown=0, NotChecked=0, Total=1640 [2019-09-10 02:41:06,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1949 states. [2019-09-10 02:41:07,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1949 to 1930. [2019-09-10 02:41:07,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1930 states. [2019-09-10 02:41:07,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1930 states to 1930 states and 2495 transitions. [2019-09-10 02:41:07,114 INFO L78 Accepts]: Start accepts. Automaton has 1930 states and 2495 transitions. Word has length 178 [2019-09-10 02:41:07,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:41:07,116 INFO L475 AbstractCegarLoop]: Abstraction has 1930 states and 2495 transitions. [2019-09-10 02:41:07,116 INFO L476 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-09-10 02:41:07,116 INFO L276 IsEmpty]: Start isEmpty. Operand 1930 states and 2495 transitions. [2019-09-10 02:41:07,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2019-09-10 02:41:07,121 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:41:07,121 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:41:07,121 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:41:07,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:41:07,122 INFO L82 PathProgramCache]: Analyzing trace with hash 748374271, now seen corresponding path program 1 times [2019-09-10 02:41:07,122 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:41:07,123 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:41:07,123 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:41:07,123 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:41:07,124 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:41:07,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:41:07,391 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2019-09-10 02:41:07,391 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:41:07,391 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2019-09-10 02:41:07,391 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:41:07,392 INFO L454 AbstractCegarLoop]: Interpolant automaton has 16 states [2019-09-10 02:41:07,392 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2019-09-10 02:41:07,393 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2019-09-10 02:41:07,393 INFO L87 Difference]: Start difference. First operand 1930 states and 2495 transitions. Second operand 16 states. [2019-09-10 02:41:07,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:41:07,761 INFO L93 Difference]: Finished difference Result 1789 states and 2321 transitions. [2019-09-10 02:41:07,762 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-09-10 02:41:07,762 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 179 [2019-09-10 02:41:07,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:41:07,773 INFO L225 Difference]: With dead ends: 1789 [2019-09-10 02:41:07,773 INFO L226 Difference]: Without dead ends: 1277 [2019-09-10 02:41:07,774 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=409, Unknown=0, NotChecked=0, Total=462 [2019-09-10 02:41:07,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1277 states. [2019-09-10 02:41:07,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1277 to 1159. [2019-09-10 02:41:07,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1159 states. [2019-09-10 02:41:07,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1159 states to 1159 states and 1511 transitions. [2019-09-10 02:41:07,827 INFO L78 Accepts]: Start accepts. Automaton has 1159 states and 1511 transitions. Word has length 179 [2019-09-10 02:41:07,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:41:07,829 INFO L475 AbstractCegarLoop]: Abstraction has 1159 states and 1511 transitions. [2019-09-10 02:41:07,829 INFO L476 AbstractCegarLoop]: Interpolant automaton has 16 states. [2019-09-10 02:41:07,829 INFO L276 IsEmpty]: Start isEmpty. Operand 1159 states and 1511 transitions. [2019-09-10 02:41:07,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2019-09-10 02:41:07,834 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:41:07,834 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:41:07,834 INFO L418 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:41:07,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:41:07,835 INFO L82 PathProgramCache]: Analyzing trace with hash 2091426612, now seen corresponding path program 1 times [2019-09-10 02:41:07,835 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:41:07,836 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:41:07,836 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:41:07,837 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:41:07,837 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:41:07,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:41:08,035 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2019-09-10 02:41:08,035 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 02:41:08,036 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 02:41:08,038 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 189 with the following transitions: [2019-09-10 02:41:08,041 INFO L207 CegarAbsIntRunner]: [72], [75], [85], [86], [89], [98], [123], [139], [142], [156], [157], [159], [269], [271], [275], [278], [279], [280], [283], [289], [314], [317], [326], [339], [341], [342], [345], [355], [384], [610], [612], [613], [614], [622], [625], [631], [652], [655], [669], [698], [699], [700], [703], [709], [710], [712], [714], [727], [729], [733], [736], [760], [764], [767], [775], [778], [810], [816], [825], [829], [831], [833], [836], [843], [850], [853], [1114], [1116], [1117], [1118], [1121], [1123], [1125], [1128], [1147], [1201], [1223], [1234], [1237], [1238], [1241], [1244], [1275], [1276], [1278], [1391], [1394], [1408], [1414], [1417], [1426], [1442], [1445], [1454], [1615], [1617], [1619], [1621], [1622], [1652], [1662], [1663], [1664], [1665], [1666], [1667], [1670], [1671], [1672], [1673], [1674], [1676], [1677], [1678], [1679], [1692], [1693], [1698], [1734], [1735], [1750], [1751], [1752], [1753], [1754], [1756], [1757], [1758], [1759], [1760], [1761], [1762], [1763], [1764], [1765], [1766], [1767], [1768], [1769], [1770], [1772], [1773], [1774], [1775], [1790], [1814], [1816], [1817], [1818], [1819], [1820], [1821], [1822], [1830], [1831], [1832], [1834], [1835], [1836], [1837], [1838], [1839], [1840], [1852], [1853], [1854], [1855], [1856], [1857], [1858], [1859], [1860] [2019-09-10 02:41:08,140 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-10 02:41:08,141 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-10 02:41:08,353 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-09-10 02:41:08,355 INFO L272 AbstractInterpreter]: Visited 2 different actions 2 times. Never merged. Never widened. Performed 192 root evaluator evaluations with a maximum evaluation depth of 0. Performed 192 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 378 variables. [2019-09-10 02:41:08,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:41:08,361 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-09-10 02:41:08,464 INFO L219 lantSequenceWeakener]: Could never weaken! [2019-09-10 02:41:08,465 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-09-10 02:41:08,477 INFO L420 sIntCurrentIteration]: We unified 187 AI predicates to 187 [2019-09-10 02:41:08,478 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-09-10 02:41:08,479 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-10 02:41:08,479 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [7] total 7 [2019-09-10 02:41:08,479 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:41:08,480 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-10 02:41:08,480 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-10 02:41:08,480 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 02:41:08,481 INFO L87 Difference]: Start difference. First operand 1159 states and 1511 transitions. Second operand 2 states. [2019-09-10 02:41:08,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:41:08,481 INFO L93 Difference]: Finished difference Result 2 states and 1 transitions. [2019-09-10 02:41:08,482 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-10 02:41:08,482 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 188 [2019-09-10 02:41:08,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:41:08,482 INFO L225 Difference]: With dead ends: 2 [2019-09-10 02:41:08,482 INFO L226 Difference]: Without dead ends: 0 [2019-09-10 02:41:08,483 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 187 GetRequests, 187 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 02:41:08,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-10 02:41:08,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-10 02:41:08,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-10 02:41:08,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-10 02:41:08,484 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 188 [2019-09-10 02:41:08,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:41:08,484 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-10 02:41:08,484 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-10 02:41:08,484 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-10 02:41:08,484 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-10 02:41:08,491 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.09 02:41:08 BoogieIcfgContainer [2019-09-10 02:41:08,492 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-10 02:41:08,495 INFO L168 Benchmark]: Toolchain (without parser) took 18987.74 ms. Allocated memory was 132.1 MB in the beginning and 471.3 MB in the end (delta: 339.2 MB). Free memory was 85.9 MB in the beginning and 144.1 MB in the end (delta: -58.2 MB). Peak memory consumption was 281.0 MB. Max. memory is 7.1 GB. [2019-09-10 02:41:08,496 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 132.1 MB. Free memory was 106.5 MB in the beginning and 106.3 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-10 02:41:08,498 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1124.47 ms. Allocated memory was 132.1 MB in the beginning and 200.3 MB in the end (delta: 68.2 MB). Free memory was 85.7 MB in the beginning and 134.6 MB in the end (delta: -48.9 MB). Peak memory consumption was 35.3 MB. Max. memory is 7.1 GB. [2019-09-10 02:41:08,499 INFO L168 Benchmark]: Boogie Preprocessor took 157.95 ms. Allocated memory is still 200.3 MB. Free memory was 134.6 MB in the beginning and 125.8 MB in the end (delta: 8.8 MB). Peak memory consumption was 8.8 MB. Max. memory is 7.1 GB. [2019-09-10 02:41:08,501 INFO L168 Benchmark]: RCFGBuilder took 2349.63 ms. Allocated memory was 200.3 MB in the beginning and 265.8 MB in the end (delta: 65.5 MB). Free memory was 125.8 MB in the beginning and 170.3 MB in the end (delta: -44.5 MB). Peak memory consumption was 86.5 MB. Max. memory is 7.1 GB. [2019-09-10 02:41:08,503 INFO L168 Benchmark]: TraceAbstraction took 15351.36 ms. Allocated memory was 265.8 MB in the beginning and 471.3 MB in the end (delta: 205.5 MB). Free memory was 168.2 MB in the beginning and 144.1 MB in the end (delta: 24.0 MB). Peak memory consumption was 229.6 MB. Max. memory is 7.1 GB. [2019-09-10 02:41:08,514 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 132.1 MB. Free memory was 106.5 MB in the beginning and 106.3 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1124.47 ms. Allocated memory was 132.1 MB in the beginning and 200.3 MB in the end (delta: 68.2 MB). Free memory was 85.7 MB in the beginning and 134.6 MB in the end (delta: -48.9 MB). Peak memory consumption was 35.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 157.95 ms. Allocated memory is still 200.3 MB. Free memory was 134.6 MB in the beginning and 125.8 MB in the end (delta: 8.8 MB). Peak memory consumption was 8.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 2349.63 ms. Allocated memory was 200.3 MB in the beginning and 265.8 MB in the end (delta: 65.5 MB). Free memory was 125.8 MB in the beginning and 170.3 MB in the end (delta: -44.5 MB). Peak memory consumption was 86.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 15351.36 ms. Allocated memory was 265.8 MB in the beginning and 471.3 MB in the end (delta: 205.5 MB). Free memory was 168.2 MB in the beginning and 144.1 MB in the end (delta: 24.0 MB). Peak memory consumption was 229.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 426]: 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 112 procedures, 760 locations, 1 error locations. SAFE Result, 15.2s OverallTime, 6 OverallIterations, 3 TraceHistogramMax, 12.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 3573 SDtfs, 3552 SDslu, 11029 SDs, 0 SdLazy, 8686 SolverSat, 2171 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 9.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 272 GetRequests, 211 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 449 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1930occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.3s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 1.0 AbsIntWeakeningRatio, 2.2941176470588234 AbsIntAvgWeakeningVarsNumRemoved, 0.0 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 6 MinimizatonAttempts, 139 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 1063 NumberOfCodeBlocks, 1063 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 1057 ConstructedInterpolants, 0 QuantifiedInterpolants, 231380 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 5 PerfectInterpolantSequences, 173/176 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...