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_spec0_product24.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fea9116 [2019-09-20 13:29:12,248 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-20 13:29:12,250 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-20 13:29:12,262 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-20 13:29:12,262 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-20 13:29:12,263 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-20 13:29:12,265 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-20 13:29:12,267 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-20 13:29:12,269 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-20 13:29:12,270 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-20 13:29:12,273 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-20 13:29:12,276 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-20 13:29:12,276 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-20 13:29:12,280 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-20 13:29:12,282 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-20 13:29:12,283 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-20 13:29:12,289 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-20 13:29:12,290 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-20 13:29:12,294 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-20 13:29:12,298 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-20 13:29:12,302 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-20 13:29:12,303 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-20 13:29:12,305 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-20 13:29:12,308 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-20 13:29:12,310 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-20 13:29:12,311 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-20 13:29:12,311 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-20 13:29:12,312 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-20 13:29:12,315 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-20 13:29:12,316 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-20 13:29:12,316 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-20 13:29:12,318 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-20 13:29:12,319 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-20 13:29:12,319 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-20 13:29:12,323 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-20 13:29:12,323 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-20 13:29:12,324 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-20 13:29:12,324 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-20 13:29:12,326 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-20 13:29:12,328 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-20 13:29:12,331 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-20 13:29:12,332 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 [2019-09-20 13:29:12,357 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-20 13:29:12,358 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-20 13:29:12,358 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-20 13:29:12,358 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-20 13:29:12,359 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-20 13:29:12,359 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-20 13:29:12,359 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-20 13:29:12,360 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-20 13:29:12,360 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-20 13:29:12,360 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-20 13:29:12,361 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-20 13:29:12,361 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-20 13:29:12,361 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-20 13:29:12,362 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-20 13:29:12,362 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-20 13:29:12,362 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-20 13:29:12,362 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-20 13:29:12,363 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-20 13:29:12,363 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-20 13:29:12,363 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-20 13:29:12,363 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-20 13:29:12,363 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-20 13:29:12,364 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-20 13:29:12,364 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 13:29:12,364 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-20 13:29:12,364 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-20 13:29:12,364 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-20 13:29:12,365 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-20 13:29:12,365 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-20 13:29:12,365 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-20 13:29:12,397 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-20 13:29:12,409 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-20 13:29:12,412 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-20 13:29:12,413 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-20 13:29:12,414 INFO L275 PluginConnector]: CDTParser initialized [2019-09-20 13:29:12,414 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec0_product24.cil.c [2019-09-20 13:29:12,483 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2f6464d8c/eb563b5339754d91a64936715d66e382/FLAG4b217f7a5 [2019-09-20 13:29:13,155 INFO L306 CDTParser]: Found 1 translation units. [2019-09-20 13:29:13,156 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec0_product24.cil.c [2019-09-20 13:29:13,198 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2f6464d8c/eb563b5339754d91a64936715d66e382/FLAG4b217f7a5 [2019-09-20 13:29:13,333 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2f6464d8c/eb563b5339754d91a64936715d66e382 [2019-09-20 13:29:13,346 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-20 13:29:13,348 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-20 13:29:13,350 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-20 13:29:13,351 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-20 13:29:13,354 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-20 13:29:13,355 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:29:13" (1/1) ... [2019-09-20 13:29:13,360 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a2ab4c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:13, skipping insertion in model container [2019-09-20 13:29:13,360 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:29:13" (1/1) ... [2019-09-20 13:29:13,369 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-20 13:29:13,448 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-20 13:29:14,176 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:29:14,201 INFO L188 MainTranslator]: Completed pre-run [2019-09-20 13:29:14,358 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:29:14,451 INFO L192 MainTranslator]: Completed translation [2019-09-20 13:29:14,452 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:14 WrapperNode [2019-09-20 13:29:14,452 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-20 13:29:14,453 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-20 13:29:14,453 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-20 13:29:14,453 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-20 13:29:14,467 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:14" (1/1) ... [2019-09-20 13:29:14,468 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:14" (1/1) ... [2019-09-20 13:29:14,542 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:14" (1/1) ... [2019-09-20 13:29:14,542 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:14" (1/1) ... [2019-09-20 13:29:14,636 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:14" (1/1) ... [2019-09-20 13:29:14,667 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:14" (1/1) ... [2019-09-20 13:29:14,698 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:14" (1/1) ... [2019-09-20 13:29:14,730 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-20 13:29:14,731 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-20 13:29:14,731 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-20 13:29:14,731 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-20 13:29:14,732 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:14" (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 [2019-09-20 13:29:14,825 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-20 13:29:14,825 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-20 13:29:14,825 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-09-20 13:29:14,826 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-09-20 13:29:14,826 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-09-20 13:29:14,826 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-09-20 13:29:14,827 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-09-20 13:29:14,827 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-09-20 13:29:14,827 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-09-20 13:29:14,828 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-09-20 13:29:14,828 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-09-20 13:29:14,828 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-09-20 13:29:14,828 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-09-20 13:29:14,829 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-09-20 13:29:14,829 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-09-20 13:29:14,829 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-09-20 13:29:14,829 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-09-20 13:29:14,830 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-09-20 13:29:14,830 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-09-20 13:29:14,830 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-09-20 13:29:14,831 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-09-20 13:29:14,831 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-09-20 13:29:14,831 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-09-20 13:29:14,832 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-09-20 13:29:14,832 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-09-20 13:29:14,832 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-09-20 13:29:14,832 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2019-09-20 13:29:14,832 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-09-20 13:29:14,833 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-09-20 13:29:14,833 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Keys [2019-09-20 13:29:14,833 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-09-20 13:29:14,834 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Forward [2019-09-20 13:29:14,834 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-09-20 13:29:14,834 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-09-20 13:29:14,834 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-09-20 13:29:14,835 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-09-20 13:29:14,835 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-09-20 13:29:14,835 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-09-20 13:29:14,835 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-09-20 13:29:14,836 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-09-20 13:29:14,836 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-09-20 13:29:14,836 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-09-20 13:29:14,836 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-09-20 13:29:14,837 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-09-20 13:29:14,837 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-09-20 13:29:14,837 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-09-20 13:29:14,837 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-09-20 13:29:14,838 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-09-20 13:29:14,838 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-09-20 13:29:14,838 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-09-20 13:29:14,838 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-09-20 13:29:14,839 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-09-20 13:29:14,839 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-09-20 13:29:14,839 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-09-20 13:29:14,839 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-20 13:29:14,840 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-09-20 13:29:14,840 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-09-20 13:29:14,840 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-09-20 13:29:14,840 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-09-20 13:29:14,840 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-09-20 13:29:14,841 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-09-20 13:29:14,841 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-09-20 13:29:14,841 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-09-20 13:29:14,841 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-09-20 13:29:14,842 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-09-20 13:29:14,842 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-09-20 13:29:14,842 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-09-20 13:29:14,842 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-09-20 13:29:14,842 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-09-20 13:29:14,843 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-09-20 13:29:14,843 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-09-20 13:29:14,843 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-09-20 13:29:14,843 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-09-20 13:29:14,844 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__AutoResponder [2019-09-20 13:29:14,844 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Forward [2019-09-20 13:29:14,844 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-09-20 13:29:14,844 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-09-20 13:29:14,844 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-09-20 13:29:14,845 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-09-20 13:29:14,845 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__DecryptForward_spec__1 [2019-09-20 13:29:14,845 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-09-20 13:29:14,845 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-09-20 13:29:14,845 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-09-20 13:29:14,845 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-09-20 13:29:14,846 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-09-20 13:29:14,846 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-09-20 13:29:14,846 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-09-20 13:29:14,846 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-09-20 13:29:14,846 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-09-20 13:29:14,846 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-09-20 13:29:14,847 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-09-20 13:29:14,847 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-09-20 13:29:14,847 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-09-20 13:29:14,847 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-09-20 13:29:14,847 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-09-20 13:29:14,848 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-09-20 13:29:14,848 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-09-20 13:29:14,848 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-09-20 13:29:14,848 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-09-20 13:29:14,848 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-09-20 13:29:14,849 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-09-20 13:29:14,849 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-09-20 13:29:14,849 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-09-20 13:29:14,849 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-09-20 13:29:14,850 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-09-20 13:29:14,850 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-09-20 13:29:14,850 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-09-20 13:29:14,850 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-09-20 13:29:14,851 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-09-20 13:29:14,851 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-09-20 13:29:14,851 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-09-20 13:29:14,851 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-09-20 13:29:14,851 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-09-20 13:29:14,852 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-09-20 13:29:14,852 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-20 13:29:14,852 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-20 13:29:14,852 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-09-20 13:29:14,852 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-09-20 13:29:14,853 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-09-20 13:29:14,853 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-09-20 13:29:14,853 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-09-20 13:29:14,853 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-09-20 13:29:14,853 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-09-20 13:29:14,853 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-09-20 13:29:14,854 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-09-20 13:29:14,854 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-09-20 13:29:14,854 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-09-20 13:29:14,854 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-09-20 13:29:14,854 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-09-20 13:29:14,854 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-09-20 13:29:14,854 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-09-20 13:29:14,855 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-09-20 13:29:14,855 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-09-20 13:29:14,855 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-09-20 13:29:14,856 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-09-20 13:29:14,856 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-09-20 13:29:14,856 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-09-20 13:29:14,856 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-09-20 13:29:14,856 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-09-20 13:29:14,857 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-09-20 13:29:14,857 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-09-20 13:29:14,857 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-09-20 13:29:14,857 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-09-20 13:29:14,857 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-09-20 13:29:14,857 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-09-20 13:29:14,857 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-09-20 13:29:14,858 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-09-20 13:29:14,858 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-09-20 13:29:14,858 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-09-20 13:29:14,858 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-09-20 13:29:14,858 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-09-20 13:29:14,859 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-09-20 13:29:14,859 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-09-20 13:29:14,859 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-09-20 13:29:14,859 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-09-20 13:29:14,860 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-09-20 13:29:14,860 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-09-20 13:29:14,860 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-09-20 13:29:14,860 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-09-20 13:29:14,860 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-09-20 13:29:14,861 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-09-20 13:29:14,861 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-09-20 13:29:14,861 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-09-20 13:29:14,861 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-09-20 13:29:14,862 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-09-20 13:29:14,862 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-09-20 13:29:14,862 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-09-20 13:29:14,862 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-09-20 13:29:14,863 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-09-20 13:29:14,863 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-09-20 13:29:14,863 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-09-20 13:29:14,863 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-09-20 13:29:14,863 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-09-20 13:29:14,864 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-09-20 13:29:14,864 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-09-20 13:29:14,864 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-09-20 13:29:14,864 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-20 13:29:14,865 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2019-09-20 13:29:14,865 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Keys [2019-09-20 13:29:14,865 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-09-20 13:29:14,865 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Forward [2019-09-20 13:29:14,865 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__DecryptForward_spec__1 [2019-09-20 13:29:14,866 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-09-20 13:29:14,866 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-09-20 13:29:14,866 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-09-20 13:29:14,866 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-09-20 13:29:14,867 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-09-20 13:29:14,867 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-09-20 13:29:14,867 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-09-20 13:29:14,867 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-09-20 13:29:14,867 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-09-20 13:29:14,868 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-09-20 13:29:14,868 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-09-20 13:29:14,868 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-09-20 13:29:14,868 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-09-20 13:29:14,869 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-09-20 13:29:14,869 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-09-20 13:29:14,869 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-09-20 13:29:14,869 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-20 13:29:14,869 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-09-20 13:29:14,870 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-09-20 13:29:14,870 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-09-20 13:29:14,870 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-09-20 13:29:14,870 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-09-20 13:29:14,871 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-09-20 13:29:14,871 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-09-20 13:29:14,871 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-20 13:29:14,871 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-20 13:29:14,871 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-09-20 13:29:14,872 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-20 13:29:14,872 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-20 13:29:14,872 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-20 13:29:14,872 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-20 13:29:14,872 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-09-20 13:29:14,872 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-20 13:29:14,872 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-09-20 13:29:14,873 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-09-20 13:29:14,873 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-20 13:29:14,873 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-09-20 13:29:14,873 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-09-20 13:29:14,874 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-09-20 13:29:14,874 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-09-20 13:29:14,874 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__AutoResponder [2019-09-20 13:29:14,874 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Forward [2019-09-20 13:29:14,875 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-09-20 13:29:14,875 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-09-20 13:29:14,875 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-09-20 13:29:14,875 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-09-20 13:29:14,876 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-09-20 13:29:14,876 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-09-20 13:29:14,876 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-09-20 13:29:14,877 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-09-20 13:29:14,877 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-09-20 13:29:14,877 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-09-20 13:29:14,877 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-09-20 13:29:14,878 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-09-20 13:29:14,878 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-09-20 13:29:14,878 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-09-20 13:29:14,878 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-09-20 13:29:14,879 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-09-20 13:29:14,879 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-20 13:29:14,879 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-20 13:29:14,879 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-20 13:29:17,423 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-20 13:29:17,423 INFO L283 CfgBuilder]: Removed 4 assume(true) statements. [2019-09-20 13:29:17,425 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:29:17 BoogieIcfgContainer [2019-09-20 13:29:17,425 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-20 13:29:17,427 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-20 13:29:17,427 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-20 13:29:17,430 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-20 13:29:17,430 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 01:29:13" (1/3) ... [2019-09-20 13:29:17,431 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30afa8d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:29:17, skipping insertion in model container [2019-09-20 13:29:17,431 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:14" (2/3) ... [2019-09-20 13:29:17,432 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30afa8d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:29:17, skipping insertion in model container [2019-09-20 13:29:17,432 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:29:17" (3/3) ... [2019-09-20 13:29:17,434 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec0_product24.cil.c [2019-09-20 13:29:17,444 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-20 13:29:17,455 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-20 13:29:17,473 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-20 13:29:17,503 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-20 13:29:17,503 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-20 13:29:17,503 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-20 13:29:17,503 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-20 13:29:17,504 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-20 13:29:17,504 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-20 13:29:17,504 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-20 13:29:17,504 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-20 13:29:17,533 INFO L276 IsEmpty]: Start isEmpty. Operand 523 states. [2019-09-20 13:29:17,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2019-09-20 13:29:17,562 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:29:17,564 INFO L407 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:29:17,567 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:29:17,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:29:17,573 INFO L82 PathProgramCache]: Analyzing trace with hash -294836604, now seen corresponding path program 1 times [2019-09-20 13:29:17,576 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:29:17,644 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:17,644 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:29:17,645 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:17,645 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:29:17,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:29:18,222 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2019-09-20 13:29:18,224 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:29:18,225 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-20 13:29:18,225 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:29:18,233 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-20 13:29:18,248 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-20 13:29:18,249 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-20 13:29:18,252 INFO L87 Difference]: Start difference. First operand 523 states. Second operand 2 states. [2019-09-20 13:29:18,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:29:18,308 INFO L93 Difference]: Finished difference Result 509 states and 669 transitions. [2019-09-20 13:29:18,309 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-20 13:29:18,310 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 193 [2019-09-20 13:29:18,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:29:18,334 INFO L225 Difference]: With dead ends: 509 [2019-09-20 13:29:18,334 INFO L226 Difference]: Without dead ends: 500 [2019-09-20 13:29:18,336 INFO L636 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 [2019-09-20 13:29:18,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 500 states. [2019-09-20 13:29:18,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 500 to 500. [2019-09-20 13:29:18,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 500 states. [2019-09-20 13:29:18,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 500 states to 500 states and 658 transitions. [2019-09-20 13:29:18,433 INFO L78 Accepts]: Start accepts. Automaton has 500 states and 658 transitions. Word has length 193 [2019-09-20 13:29:18,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:29:18,436 INFO L475 AbstractCegarLoop]: Abstraction has 500 states and 658 transitions. [2019-09-20 13:29:18,436 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-20 13:29:18,436 INFO L276 IsEmpty]: Start isEmpty. Operand 500 states and 658 transitions. [2019-09-20 13:29:18,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2019-09-20 13:29:18,443 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:29:18,443 INFO L407 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:29:18,444 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:29:18,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:29:18,444 INFO L82 PathProgramCache]: Analyzing trace with hash -610147950, now seen corresponding path program 1 times [2019-09-20 13:29:18,444 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:29:18,449 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:18,449 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:29:18,450 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:18,450 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:29:18,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:29:18,769 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2019-09-20 13:29:18,770 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:29:18,770 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:29:18,771 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:29:18,780 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:29:18,780 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:29:18,781 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:29:18,781 INFO L87 Difference]: Start difference. First operand 500 states and 658 transitions. Second operand 3 states. [2019-09-20 13:29:18,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:29:18,872 INFO L93 Difference]: Finished difference Result 503 states and 661 transitions. [2019-09-20 13:29:18,873 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:29:18,873 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 194 [2019-09-20 13:29:18,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:29:18,888 INFO L225 Difference]: With dead ends: 503 [2019-09-20 13:29:18,888 INFO L226 Difference]: Without dead ends: 503 [2019-09-20 13:29:18,889 INFO L636 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 [2019-09-20 13:29:18,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 503 states. [2019-09-20 13:29:18,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 503 to 502. [2019-09-20 13:29:18,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 502 states. [2019-09-20 13:29:18,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 502 states to 502 states and 660 transitions. [2019-09-20 13:29:18,959 INFO L78 Accepts]: Start accepts. Automaton has 502 states and 660 transitions. Word has length 194 [2019-09-20 13:29:18,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:29:18,963 INFO L475 AbstractCegarLoop]: Abstraction has 502 states and 660 transitions. [2019-09-20 13:29:18,963 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:29:18,963 INFO L276 IsEmpty]: Start isEmpty. Operand 502 states and 660 transitions. [2019-09-20 13:29:18,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2019-09-20 13:29:18,976 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:29:18,977 INFO L407 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:29:18,977 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:29:18,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:29:18,978 INFO L82 PathProgramCache]: Analyzing trace with hash -1302493868, now seen corresponding path program 1 times [2019-09-20 13:29:18,978 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:29:18,984 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:18,984 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:29:18,984 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:18,985 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:29:19,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:29:19,303 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2019-09-20 13:29:19,303 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:29:19,304 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:29:19,304 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:29:19,307 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:29:19,309 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:29:19,310 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:29:19,310 INFO L87 Difference]: Start difference. First operand 502 states and 660 transitions. Second operand 3 states. [2019-09-20 13:29:19,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:29:19,349 INFO L93 Difference]: Finished difference Result 545 states and 733 transitions. [2019-09-20 13:29:19,350 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:29:19,350 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 206 [2019-09-20 13:29:19,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:29:19,357 INFO L225 Difference]: With dead ends: 545 [2019-09-20 13:29:19,357 INFO L226 Difference]: Without dead ends: 545 [2019-09-20 13:29:19,358 INFO L636 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 [2019-09-20 13:29:19,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 545 states. [2019-09-20 13:29:19,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 545 to 544. [2019-09-20 13:29:19,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 544 states. [2019-09-20 13:29:19,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 544 states to 544 states and 732 transitions. [2019-09-20 13:29:19,395 INFO L78 Accepts]: Start accepts. Automaton has 544 states and 732 transitions. Word has length 206 [2019-09-20 13:29:19,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:29:19,397 INFO L475 AbstractCegarLoop]: Abstraction has 544 states and 732 transitions. [2019-09-20 13:29:19,397 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:29:19,397 INFO L276 IsEmpty]: Start isEmpty. Operand 544 states and 732 transitions. [2019-09-20 13:29:19,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2019-09-20 13:29:19,404 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:29:19,405 INFO L407 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:29:19,405 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:29:19,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:29:19,405 INFO L82 PathProgramCache]: Analyzing trace with hash 2140310884, now seen corresponding path program 1 times [2019-09-20 13:29:19,406 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:29:19,411 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:19,411 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:29:19,411 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:19,412 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:29:19,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:29:19,650 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2019-09-20 13:29:19,651 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:29:19,651 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:29:19,651 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:29:19,653 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:29:19,654 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:29:19,654 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:29:19,654 INFO L87 Difference]: Start difference. First operand 544 states and 732 transitions. Second operand 3 states. [2019-09-20 13:29:19,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:29:19,686 INFO L93 Difference]: Finished difference Result 626 states and 871 transitions. [2019-09-20 13:29:19,687 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:29:19,687 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 207 [2019-09-20 13:29:19,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:29:19,691 INFO L225 Difference]: With dead ends: 626 [2019-09-20 13:29:19,692 INFO L226 Difference]: Without dead ends: 626 [2019-09-20 13:29:19,692 INFO L636 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 [2019-09-20 13:29:19,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 626 states. [2019-09-20 13:29:19,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 626 to 625. [2019-09-20 13:29:19,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 625 states. [2019-09-20 13:29:19,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 625 states to 625 states and 870 transitions. [2019-09-20 13:29:19,713 INFO L78 Accepts]: Start accepts. Automaton has 625 states and 870 transitions. Word has length 207 [2019-09-20 13:29:19,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:29:19,714 INFO L475 AbstractCegarLoop]: Abstraction has 625 states and 870 transitions. [2019-09-20 13:29:19,714 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:29:19,714 INFO L276 IsEmpty]: Start isEmpty. Operand 625 states and 870 transitions. [2019-09-20 13:29:19,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2019-09-20 13:29:19,719 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:29:19,719 INFO L407 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:29:19,720 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:29:19,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:29:19,720 INFO L82 PathProgramCache]: Analyzing trace with hash -1021102247, now seen corresponding path program 1 times [2019-09-20 13:29:19,720 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:29:19,724 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:19,725 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:29:19,725 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:19,725 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:29:19,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:29:19,943 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2019-09-20 13:29:19,944 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-20 13:29:19,944 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-20 13:29:19,945 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 211 with the following transitions: [2019-09-20 13:29:19,948 INFO L207 CegarAbsIntRunner]: [44], [47], [50], [85], [88], [98], [133], [162], [165], [166], [167], [169], [279], [282], [283], [284], [287], [293], [315], [318], [324], [326], [327], [329], [333], [336], [345], [356], [357], [358], [360], [361], [364], [374], [375], [376], [403], [405], [417], [439], [441], [536], [632], [634], [635], [636], [654], [656], [661], [685], [688], [702], [741], [743], [746], [747], [758], [760], [763], [767], [791], [795], [798], [806], [809], [823], [826], [836], [837], [843], [852], [856], [858], [860], [863], [870], [877], [880], [882], [1018], [1021], [1035], [1143], [1197], [1219], [1230], [1233], [1272], [1274], [1353], [1356], [1366], [1387], [1390], [1404], [1410], [1413], [1422], [1611], [1613], [1615], [1617], [1618], [1622], [1624], [1633], [1634], [1635], [1636], [1637], [1638], [1639], [1659], [1669], [1670], [1671], [1672], [1673], [1674], [1677], [1678], [1679], [1680], [1687], [1688], [1689], [1690], [1693], [1694], [1695], [1696], [1697], [1703], [1704], [1709], [1710], [1723], [1724], [1731], [1747], [1748], [1757], [1758], [1759], [1767], [1768], [1769], [1771], [1772], [1777], [1778], [1779], [1780], [1781], [1782], [1783], [1784], [1785], [1787], [1788], [1789], [1790], [1803], [1804], [1805], [1811], [1812], [1829], [1831], [1832], [1833], [1835], [1836], [1837], [1838], [1839], [1840], [1841], [1853], [1854], [1855], [1856], [1857], [1858], [1859], [1860], [1861], [1863], [1864] [2019-09-20 13:29:20,019 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-20 13:29:20,019 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-20 13:29:20,217 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-09-20 13:29:20,220 INFO L272 AbstractInterpreter]: Visited 2 different actions 2 times. Never merged. Never widened. Performed 226 root evaluator evaluations with a maximum evaluation depth of 0. Performed 226 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 368 variables. [2019-09-20 13:29:20,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:29:20,226 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-09-20 13:29:20,386 INFO L219 lantSequenceWeakener]: Could never weaken! [2019-09-20 13:29:20,386 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-09-20 13:29:20,398 INFO L420 sIntCurrentIteration]: We unified 209 AI predicates to 209 [2019-09-20 13:29:20,398 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-09-20 13:29:20,399 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-20 13:29:20,400 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [8] total 8 [2019-09-20 13:29:20,400 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:29:20,401 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-20 13:29:20,401 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-20 13:29:20,401 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-20 13:29:20,402 INFO L87 Difference]: Start difference. First operand 625 states and 870 transitions. Second operand 2 states. [2019-09-20 13:29:20,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:29:20,402 INFO L93 Difference]: Finished difference Result 2 states and 1 transitions. [2019-09-20 13:29:20,403 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-20 13:29:20,403 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 210 [2019-09-20 13:29:20,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:29:20,403 INFO L225 Difference]: With dead ends: 2 [2019-09-20 13:29:20,403 INFO L226 Difference]: Without dead ends: 0 [2019-09-20 13:29:20,404 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 209 GetRequests, 209 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-20 13:29:20,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-20 13:29:20,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-20 13:29:20,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-20 13:29:20,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-20 13:29:20,405 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 210 [2019-09-20 13:29:20,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:29:20,405 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-20 13:29:20,405 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-20 13:29:20,406 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-20 13:29:20,406 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-20 13:29:20,413 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 01:29:20 BoogieIcfgContainer [2019-09-20 13:29:20,414 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-20 13:29:20,417 INFO L168 Benchmark]: Toolchain (without parser) took 7068.09 ms. Allocated memory was 129.5 MB in the beginning and 377.5 MB in the end (delta: 248.0 MB). Free memory was 82.5 MB in the beginning and 117.1 MB in the end (delta: -34.5 MB). Peak memory consumption was 213.4 MB. Max. memory is 7.1 GB. [2019-09-20 13:29:20,419 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 129.5 MB. Free memory was 103.1 MB in the beginning and 102.9 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2019-09-20 13:29:20,422 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1102.05 ms. Allocated memory was 129.5 MB in the beginning and 199.2 MB in the end (delta: 69.7 MB). Free memory was 82.1 MB in the beginning and 130.4 MB in the end (delta: -48.3 MB). Peak memory consumption was 35.0 MB. Max. memory is 7.1 GB. [2019-09-20 13:29:20,423 INFO L168 Benchmark]: Boogie Preprocessor took 277.43 ms. Allocated memory is still 199.2 MB. Free memory was 130.4 MB in the beginning and 121.8 MB in the end (delta: 8.6 MB). Peak memory consumption was 8.6 MB. Max. memory is 7.1 GB. [2019-09-20 13:29:20,425 INFO L168 Benchmark]: RCFGBuilder took 2694.72 ms. Allocated memory was 199.2 MB in the beginning and 279.4 MB in the end (delta: 80.2 MB). Free memory was 121.8 MB in the beginning and 185.4 MB in the end (delta: -63.7 MB). Peak memory consumption was 84.0 MB. Max. memory is 7.1 GB. [2019-09-20 13:29:20,427 INFO L168 Benchmark]: TraceAbstraction took 2987.07 ms. Allocated memory was 279.4 MB in the beginning and 377.5 MB in the end (delta: 98.0 MB). Free memory was 185.4 MB in the beginning and 117.1 MB in the end (delta: 68.4 MB). Peak memory consumption was 166.4 MB. Max. memory is 7.1 GB. [2019-09-20 13:29:20,439 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 129.5 MB. Free memory was 103.1 MB in the beginning and 102.9 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1102.05 ms. Allocated memory was 129.5 MB in the beginning and 199.2 MB in the end (delta: 69.7 MB). Free memory was 82.1 MB in the beginning and 130.4 MB in the end (delta: -48.3 MB). Peak memory consumption was 35.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 277.43 ms. Allocated memory is still 199.2 MB. Free memory was 130.4 MB in the beginning and 121.8 MB in the end (delta: 8.6 MB). Peak memory consumption was 8.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 2694.72 ms. Allocated memory was 199.2 MB in the beginning and 279.4 MB in the end (delta: 80.2 MB). Free memory was 121.8 MB in the beginning and 185.4 MB in the end (delta: -63.7 MB). Peak memory consumption was 84.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2987.07 ms. Allocated memory was 279.4 MB in the beginning and 377.5 MB in the end (delta: 98.0 MB). Free memory was 185.4 MB in the beginning and 117.1 MB in the end (delta: 68.4 MB). Peak memory consumption was 166.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 1327]: 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 114 procedures, 765 locations, 1 error locations. SAFE Result, 2.9s OverallTime, 5 OverallIterations, 3 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2664 SDtfs, 105 SDslu, 1956 SDs, 0 SdLazy, 11 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 220 GetRequests, 217 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=625occurred in iteration=4, 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, 2.0669856459330145 AbsIntAvgWeakeningVarsNumRemoved, 0.0 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 5 MinimizatonAttempts, 3 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 1010 NumberOfCodeBlocks, 1010 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 1005 ConstructedInterpolants, 0 QuantifiedInterpolants, 210483 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 4 PerfectInterpolantSequences, 179/181 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...