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_product23.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-673a906-m [2019-10-03 02:52:40,144 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-03 02:52:40,146 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-03 02:52:40,158 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-03 02:52:40,158 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-03 02:52:40,159 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-03 02:52:40,161 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-03 02:52:40,162 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-03 02:52:40,164 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-03 02:52:40,165 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-03 02:52:40,166 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-03 02:52:40,167 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-03 02:52:40,168 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-03 02:52:40,169 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-03 02:52:40,169 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-03 02:52:40,171 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-03 02:52:40,173 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-03 02:52:40,174 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-03 02:52:40,177 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-03 02:52:40,179 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-03 02:52:40,184 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-03 02:52:40,185 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-03 02:52:40,186 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-03 02:52:40,188 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-03 02:52:40,192 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-03 02:52:40,192 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-03 02:52:40,192 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-03 02:52:40,193 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-03 02:52:40,195 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-03 02:52:40,197 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-03 02:52:40,198 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-03 02:52:40,199 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-03 02:52:40,200 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-03 02:52:40,201 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-03 02:52:40,206 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-03 02:52:40,206 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-03 02:52:40,207 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-03 02:52:40,207 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-03 02:52:40,207 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-03 02:52:40,209 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-03 02:52:40,211 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-03 02:52:40,213 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf [2019-10-03 02:52:40,236 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-03 02:52:40,236 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-03 02:52:40,237 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-10-03 02:52:40,237 INFO L138 SettingsManager]: * Log level for plugins=info [2019-10-03 02:52:40,238 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-03 02:52:40,238 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-03 02:52:40,238 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-10-03 02:52:40,239 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-10-03 02:52:40,239 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-03 02:52:40,239 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-10-03 02:52:40,241 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-03 02:52:40,242 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-03 02:52:40,242 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-03 02:52:40,242 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-03 02:52:40,242 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-03 02:52:40,243 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-03 02:52:40,243 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-03 02:52:40,243 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-03 02:52:40,243 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-03 02:52:40,243 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-03 02:52:40,244 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-03 02:52:40,246 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-10-03 02:52:40,246 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-03 02:52:40,246 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-03 02:52:40,248 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-03 02:52:40,248 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-03 02:52:40,248 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-03 02:52:40,248 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-03 02:52:40,249 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-03 02:52:40,249 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-10-03 02:52:40,279 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-03 02:52:40,298 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-03 02:52:40,303 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-03 02:52:40,305 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-03 02:52:40,305 INFO L275 PluginConnector]: CDTParser initialized [2019-10-03 02:52:40,306 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec3_product23.cil.c [2019-10-03 02:52:40,387 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ebcaf882e/7265a8f79d4a4a71827d892442d1a618/FLAG165b2741d [2019-10-03 02:52:41,016 INFO L306 CDTParser]: Found 1 translation units. [2019-10-03 02:52:41,016 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec3_product23.cil.c [2019-10-03 02:52:41,040 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ebcaf882e/7265a8f79d4a4a71827d892442d1a618/FLAG165b2741d [2019-10-03 02:52:41,204 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ebcaf882e/7265a8f79d4a4a71827d892442d1a618 [2019-10-03 02:52:41,215 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-03 02:52:41,217 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-03 02:52:41,218 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-03 02:52:41,218 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-03 02:52:41,222 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-03 02:52:41,223 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.10 02:52:41" (1/1) ... [2019-10-03 02:52:41,226 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62fe4094 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:52:41, skipping insertion in model container [2019-10-03 02:52:41,226 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.10 02:52:41" (1/1) ... [2019-10-03 02:52:41,233 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-03 02:52:41,307 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-03 02:52:42,010 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-03 02:52:42,033 INFO L188 MainTranslator]: Completed pre-run [2019-10-03 02:52:42,198 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-03 02:52:42,319 INFO L192 MainTranslator]: Completed translation [2019-10-03 02:52:42,320 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:52:42 WrapperNode [2019-10-03 02:52:42,321 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-03 02:52:42,321 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-03 02:52:42,322 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-03 02:52:42,322 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-03 02:52:42,336 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:52:42" (1/1) ... [2019-10-03 02:52:42,337 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:52:42" (1/1) ... [2019-10-03 02:52:42,399 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:52:42" (1/1) ... [2019-10-03 02:52:42,399 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:52:42" (1/1) ... [2019-10-03 02:52:42,473 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:52:42" (1/1) ... [2019-10-03 02:52:42,498 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:52:42" (1/1) ... [2019-10-03 02:52:42,519 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:52:42" (1/1) ... [2019-10-03 02:52:42,535 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-03 02:52:42,536 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-03 02:52:42,536 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-03 02:52:42,536 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-03 02:52:42,537 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:52:42" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-03 02:52:42,603 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-03 02:52:42,604 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-03 02:52:42,604 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-03 02:52:42,604 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-03 02:52:42,604 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-03 02:52:42,604 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-03 02:52:42,605 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-03 02:52:42,605 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-03 02:52:42,605 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-03 02:52:42,605 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-03 02:52:42,605 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-03 02:52:42,605 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-03 02:52:42,606 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-03 02:52:42,606 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-03 02:52:42,606 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-03 02:52:42,606 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-03 02:52:42,607 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-03 02:52:42,607 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-03 02:52:42,607 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-03 02:52:42,607 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-03 02:52:42,607 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-03 02:52:42,607 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-03 02:52:42,608 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-10-03 02:52:42,608 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-10-03 02:52:42,608 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-03 02:52:42,608 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-03 02:52:42,609 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-03 02:52:42,609 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-03 02:52:42,609 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-03 02:52:42,609 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-03 02:52:42,609 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-03 02:52:42,609 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-03 02:52:42,610 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-03 02:52:42,610 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-03 02:52:42,610 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-03 02:52:42,610 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-03 02:52:42,610 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-03 02:52:42,610 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-03 02:52:42,611 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-03 02:52:42,611 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-03 02:52:42,611 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-03 02:52:42,611 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-03 02:52:42,611 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-03 02:52:42,612 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-03 02:52:42,612 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-03 02:52:42,612 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-03 02:52:42,612 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-03 02:52:42,612 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-03 02:52:42,612 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-03 02:52:42,612 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-03 02:52:42,613 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-03 02:52:42,613 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-03 02:52:42,613 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-03 02:52:42,613 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-03 02:52:42,613 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-03 02:52:42,613 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-03 02:52:42,613 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-03 02:52:42,614 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-03 02:52:42,614 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__AddressBook [2019-10-03 02:52:42,614 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Sign [2019-10-03 02:52:42,614 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-03 02:52:42,614 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-03 02:52:42,614 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-03 02:52:42,615 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-03 02:52:42,615 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__SignVerify_spec__1 [2019-10-03 02:52:42,615 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__SignVerify_spec__2 [2019-10-03 02:52:42,615 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-03 02:52:42,615 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2019-10-03 02:52:42,615 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AddressBook [2019-10-03 02:52:42,615 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-03 02:52:42,616 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-03 02:52:42,616 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Keys [2019-10-03 02:52:42,616 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-10-03 02:52:42,616 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-03 02:52:42,616 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-03 02:52:42,616 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-03 02:52:42,617 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-03 02:52:42,617 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-03 02:52:42,617 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-03 02:52:42,617 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-03 02:52:42,617 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-03 02:52:42,617 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-03 02:52:42,618 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-10-03 02:52:42,618 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-10-03 02:52:42,618 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-03 02:52:42,618 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-03 02:52:42,618 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-03 02:52:42,618 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-03 02:52:42,618 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-03 02:52:42,619 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-03 02:52:42,619 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-03 02:52:42,619 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-03 02:52:42,619 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-03 02:52:42,619 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-03 02:52:42,619 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-03 02:52:42,620 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-03 02:52:42,620 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-03 02:52:42,620 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-03 02:52:42,620 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-03 02:52:42,620 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-03 02:52:42,620 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-03 02:52:42,620 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-03 02:52:42,621 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-03 02:52:42,621 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-03 02:52:42,621 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-03 02:52:42,621 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-03 02:52:42,621 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-03 02:52:42,621 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-03 02:52:42,621 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-03 02:52:42,622 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-03 02:52:42,622 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-03 02:52:42,622 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-03 02:52:42,622 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-03 02:52:42,622 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-03 02:52:42,622 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-03 02:52:42,623 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-03 02:52:42,623 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-03 02:52:42,623 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-03 02:52:42,623 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-03 02:52:42,623 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-03 02:52:42,623 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-03 02:52:42,623 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-03 02:52:42,624 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-03 02:52:42,624 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-03 02:52:42,624 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-03 02:52:42,624 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-03 02:52:42,624 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-03 02:52:42,624 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-03 02:52:42,625 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-03 02:52:42,625 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-03 02:52:42,625 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-03 02:52:42,625 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-03 02:52:42,625 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-03 02:52:42,625 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-03 02:52:42,625 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-03 02:52:42,626 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-03 02:52:42,626 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-03 02:52:42,626 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-03 02:52:42,626 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-03 02:52:42,626 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-03 02:52:42,626 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-03 02:52:42,627 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-03 02:52:42,627 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-03 02:52:42,627 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-03 02:52:42,627 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-03 02:52:42,627 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-03 02:52:42,627 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-03 02:52:42,627 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-03 02:52:42,628 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-03 02:52:42,628 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-03 02:52:42,628 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-03 02:52:42,628 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-03 02:52:42,628 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-03 02:52:42,628 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-03 02:52:42,628 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-03 02:52:42,629 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-03 02:52:42,629 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-10-03 02:52:42,629 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-10-03 02:52:42,629 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-03 02:52:42,629 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-03 02:52:42,629 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-03 02:52:42,629 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-03 02:52:42,630 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-03 02:52:42,630 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-03 02:52:42,630 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-03 02:52:42,630 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-03 02:52:42,630 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-03 02:52:42,630 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-03 02:52:42,630 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-03 02:52:42,630 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-03 02:52:42,631 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-03 02:52:42,631 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-03 02:52:42,631 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-03 02:52:42,631 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-03 02:52:42,631 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-03 02:52:42,631 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-03 02:52:42,631 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-03 02:52:42,632 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-03 02:52:42,632 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-03 02:52:42,632 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-03 02:52:42,632 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-03 02:52:42,632 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-03 02:52:42,632 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-03 02:52:42,632 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-03 02:52:42,632 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-03 02:52:42,633 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-03 02:52:42,633 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-03 02:52:42,633 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-03 02:52:42,633 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-03 02:52:42,633 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-03 02:52:42,633 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-03 02:52:42,633 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-03 02:52:42,634 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-03 02:52:42,634 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-03 02:52:42,634 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-03 02:52:42,634 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-03 02:52:42,634 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-03 02:52:42,634 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-03 02:52:42,634 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-03 02:52:42,634 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-03 02:52:42,635 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-03 02:52:42,635 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-03 02:52:42,635 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-03 02:52:42,635 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-03 02:52:42,635 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-03 02:52:42,635 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-03 02:52:42,635 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__AddressBook [2019-10-03 02:52:42,636 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Sign [2019-10-03 02:52:42,636 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-03 02:52:42,636 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-03 02:52:42,636 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__SignVerify_spec__1 [2019-10-03 02:52:42,636 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__SignVerify_spec__2 [2019-10-03 02:52:42,636 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-03 02:52:42,636 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-03 02:52:42,637 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-03 02:52:42,637 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-03 02:52:42,637 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-03 02:52:42,637 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-03 02:52:42,637 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-03 02:52:42,637 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-03 02:52:42,637 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-03 02:52:42,638 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-03 02:52:42,638 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-03 02:52:42,638 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-10-03 02:52:42,638 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-10-03 02:52:42,638 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-03 02:52:42,638 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-03 02:52:42,638 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2019-10-03 02:52:42,639 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AddressBook [2019-10-03 02:52:42,639 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Keys [2019-10-03 02:52:42,639 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-10-03 02:52:42,639 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-03 02:52:42,639 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-03 02:52:42,639 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-03 02:52:42,640 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-03 02:52:42,640 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-03 02:52:42,640 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-03 02:52:42,640 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-03 02:52:42,640 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-03 02:52:42,640 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-03 02:52:42,640 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-03 02:52:42,641 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-03 02:52:42,641 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-03 02:52:42,641 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-03 02:52:42,641 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-03 02:52:44,777 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-03 02:52:44,777 INFO L283 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-03 02:52:44,779 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 02:52:44 BoogieIcfgContainer [2019-10-03 02:52:44,780 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-03 02:52:44,781 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-03 02:52:44,781 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-03 02:52:44,784 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-03 02:52:44,785 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.10 02:52:41" (1/3) ... [2019-10-03 02:52:44,786 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@299a5e89 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.10 02:52:44, skipping insertion in model container [2019-10-03 02:52:44,786 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:52:42" (2/3) ... [2019-10-03 02:52:44,786 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@299a5e89 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.10 02:52:44, skipping insertion in model container [2019-10-03 02:52:44,786 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 02:52:44" (3/3) ... [2019-10-03 02:52:44,788 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec3_product23.cil.c [2019-10-03 02:52:44,799 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-03 02:52:44,814 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-03 02:52:44,833 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-03 02:52:44,872 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-10-03 02:52:44,872 INFO L378 AbstractCegarLoop]: Hoare is false [2019-10-03 02:52:44,872 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-03 02:52:44,872 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-03 02:52:44,872 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-03 02:52:44,873 INFO L382 AbstractCegarLoop]: Difference is false [2019-10-03 02:52:44,876 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-03 02:52:44,876 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-03 02:52:44,916 INFO L276 IsEmpty]: Start isEmpty. Operand 587 states. [2019-10-03 02:52:44,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2019-10-03 02:52:44,966 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:52:44,968 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:52:44,973 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:52:44,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:52:44,980 INFO L82 PathProgramCache]: Analyzing trace with hash -1102643353, now seen corresponding path program 1 times [2019-10-03 02:52:44,982 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:52:45,047 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:52:45,048 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:52:45,048 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:52:45,048 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:52:45,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:52:45,661 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-03 02:52:45,663 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:52:45,663 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-03 02:52:45,664 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:52:45,670 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-03 02:52:45,684 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-03 02:52:45,685 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-03 02:52:45,687 INFO L87 Difference]: Start difference. First operand 587 states. Second operand 2 states. [2019-10-03 02:52:45,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:52:45,744 INFO L93 Difference]: Finished difference Result 545 states and 743 transitions. [2019-10-03 02:52:45,744 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-03 02:52:45,745 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 179 [2019-10-03 02:52:45,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:52:45,782 INFO L225 Difference]: With dead ends: 545 [2019-10-03 02:52:45,782 INFO L226 Difference]: Without dead ends: 536 [2019-10-03 02:52:45,786 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-03 02:52:45,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 536 states. [2019-10-03 02:52:45,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 536 to 536. [2019-10-03 02:52:45,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 536 states. [2019-10-03 02:52:45,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 536 states to 536 states and 732 transitions. [2019-10-03 02:52:45,947 INFO L78 Accepts]: Start accepts. Automaton has 536 states and 732 transitions. Word has length 179 [2019-10-03 02:52:45,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:52:45,949 INFO L475 AbstractCegarLoop]: Abstraction has 536 states and 732 transitions. [2019-10-03 02:52:45,950 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-03 02:52:45,950 INFO L276 IsEmpty]: Start isEmpty. Operand 536 states and 732 transitions. [2019-10-03 02:52:45,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2019-10-03 02:52:45,961 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:52:45,962 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:52:45,963 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:52:45,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:52:45,964 INFO L82 PathProgramCache]: Analyzing trace with hash -2131097352, now seen corresponding path program 1 times [2019-10-03 02:52:45,964 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:52:45,968 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:52:45,969 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:52:45,969 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:52:45,969 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:52:46,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:52:46,205 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-03 02:52:46,206 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:52:46,206 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-03 02:52:46,206 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:52:46,208 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-03 02:52:46,208 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-03 02:52:46,209 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-03 02:52:46,209 INFO L87 Difference]: Start difference. First operand 536 states and 732 transitions. Second operand 3 states. [2019-10-03 02:52:46,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:52:46,275 INFO L93 Difference]: Finished difference Result 539 states and 735 transitions. [2019-10-03 02:52:46,275 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-03 02:52:46,275 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 180 [2019-10-03 02:52:46,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:52:46,281 INFO L225 Difference]: With dead ends: 539 [2019-10-03 02:52:46,281 INFO L226 Difference]: Without dead ends: 539 [2019-10-03 02:52:46,282 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-03 02:52:46,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 539 states. [2019-10-03 02:52:46,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 539 to 538. [2019-10-03 02:52:46,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 538 states. [2019-10-03 02:52:46,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 734 transitions. [2019-10-03 02:52:46,314 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 734 transitions. Word has length 180 [2019-10-03 02:52:46,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:52:46,315 INFO L475 AbstractCegarLoop]: Abstraction has 538 states and 734 transitions. [2019-10-03 02:52:46,315 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-03 02:52:46,315 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 734 transitions. [2019-10-03 02:52:46,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2019-10-03 02:52:46,322 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:52:46,323 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:52:46,324 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:52:46,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:52:46,324 INFO L82 PathProgramCache]: Analyzing trace with hash 1330495496, now seen corresponding path program 1 times [2019-10-03 02:52:46,324 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:52:46,331 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:52:46,331 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:52:46,331 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:52:46,331 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:52:46,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:52:46,577 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-03 02:52:46,577 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:52:46,578 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-03 02:52:46,578 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:52:46,578 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-03 02:52:46,579 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-03 02:52:46,579 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-03 02:52:46,579 INFO L87 Difference]: Start difference. First operand 538 states and 734 transitions. Second operand 3 states. [2019-10-03 02:52:46,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:52:46,630 INFO L93 Difference]: Finished difference Result 581 states and 807 transitions. [2019-10-03 02:52:46,631 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-03 02:52:46,632 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 190 [2019-10-03 02:52:46,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:52:46,641 INFO L225 Difference]: With dead ends: 581 [2019-10-03 02:52:46,641 INFO L226 Difference]: Without dead ends: 581 [2019-10-03 02:52:46,642 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-03 02:52:46,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 581 states. [2019-10-03 02:52:46,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 581 to 580. [2019-10-03 02:52:46,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 580 states. [2019-10-03 02:52:46,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 580 states to 580 states and 806 transitions. [2019-10-03 02:52:46,683 INFO L78 Accepts]: Start accepts. Automaton has 580 states and 806 transitions. Word has length 190 [2019-10-03 02:52:46,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:52:46,683 INFO L475 AbstractCegarLoop]: Abstraction has 580 states and 806 transitions. [2019-10-03 02:52:46,683 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-03 02:52:46,684 INFO L276 IsEmpty]: Start isEmpty. Operand 580 states and 806 transitions. [2019-10-03 02:52:46,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2019-10-03 02:52:46,691 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:52:46,691 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:52:46,692 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:52:46,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:52:46,692 INFO L82 PathProgramCache]: Analyzing trace with hash -1845814731, now seen corresponding path program 1 times [2019-10-03 02:52:46,692 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:52:46,696 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:52:46,696 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:52:46,696 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:52:46,697 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:52:46,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:52:46,864 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-03 02:52:46,869 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:52:46,870 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-03 02:52:46,870 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:52:46,872 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-03 02:52:46,872 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-03 02:52:46,875 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-03 02:52:46,876 INFO L87 Difference]: Start difference. First operand 580 states and 806 transitions. Second operand 3 states. [2019-10-03 02:52:46,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:52:46,925 INFO L93 Difference]: Finished difference Result 662 states and 945 transitions. [2019-10-03 02:52:46,926 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-03 02:52:46,926 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 191 [2019-10-03 02:52:46,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:52:46,937 INFO L225 Difference]: With dead ends: 662 [2019-10-03 02:52:46,937 INFO L226 Difference]: Without dead ends: 662 [2019-10-03 02:52:46,938 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-03 02:52:46,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 662 states. [2019-10-03 02:52:46,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 662 to 661. [2019-10-03 02:52:46,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 661 states. [2019-10-03 02:52:46,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 661 states to 661 states and 944 transitions. [2019-10-03 02:52:46,978 INFO L78 Accepts]: Start accepts. Automaton has 661 states and 944 transitions. Word has length 191 [2019-10-03 02:52:46,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:52:46,979 INFO L475 AbstractCegarLoop]: Abstraction has 661 states and 944 transitions. [2019-10-03 02:52:46,980 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-03 02:52:46,980 INFO L276 IsEmpty]: Start isEmpty. Operand 661 states and 944 transitions. [2019-10-03 02:52:46,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2019-10-03 02:52:46,987 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:52:46,987 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:52:46,988 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:52:46,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:52:46,988 INFO L82 PathProgramCache]: Analyzing trace with hash 436751368, now seen corresponding path program 1 times [2019-10-03 02:52:46,988 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:52:46,994 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:52:46,995 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:52:46,995 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:52:46,995 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:52:47,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:52:47,341 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-03 02:52:47,342 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:52:47,342 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-03 02:52:47,342 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:52:47,343 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-03 02:52:47,343 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-03 02:52:47,343 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-03 02:52:47,344 INFO L87 Difference]: Start difference. First operand 661 states and 944 transitions. Second operand 3 states. [2019-10-03 02:52:47,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:52:47,370 INFO L93 Difference]: Finished difference Result 818 states and 1209 transitions. [2019-10-03 02:52:47,371 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-03 02:52:47,371 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 192 [2019-10-03 02:52:47,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:52:47,377 INFO L225 Difference]: With dead ends: 818 [2019-10-03 02:52:47,378 INFO L226 Difference]: Without dead ends: 818 [2019-10-03 02:52:47,378 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-03 02:52:47,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 818 states. [2019-10-03 02:52:47,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 818 to 817. [2019-10-03 02:52:47,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 817 states. [2019-10-03 02:52:47,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 817 states to 817 states and 1208 transitions. [2019-10-03 02:52:47,413 INFO L78 Accepts]: Start accepts. Automaton has 817 states and 1208 transitions. Word has length 192 [2019-10-03 02:52:47,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:52:47,414 INFO L475 AbstractCegarLoop]: Abstraction has 817 states and 1208 transitions. [2019-10-03 02:52:47,414 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-03 02:52:47,414 INFO L276 IsEmpty]: Start isEmpty. Operand 817 states and 1208 transitions. [2019-10-03 02:52:47,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2019-10-03 02:52:47,420 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:52:47,420 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:52:47,420 INFO L418 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:52:47,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:52:47,421 INFO L82 PathProgramCache]: Analyzing trace with hash 1985987125, now seen corresponding path program 1 times [2019-10-03 02:52:47,421 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:52:47,425 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:52:47,426 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:52:47,426 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:52:47,426 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:52:47,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:52:47,577 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-03 02:52:47,577 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:52:47,577 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-03 02:52:47,577 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:52:47,578 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-03 02:52:47,578 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-03 02:52:47,579 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-03 02:52:47,579 INFO L87 Difference]: Start difference. First operand 817 states and 1208 transitions. Second operand 3 states. [2019-10-03 02:52:47,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:52:47,605 INFO L93 Difference]: Finished difference Result 1118 states and 1713 transitions. [2019-10-03 02:52:47,606 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-03 02:52:47,606 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 193 [2019-10-03 02:52:47,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:52:47,614 INFO L225 Difference]: With dead ends: 1118 [2019-10-03 02:52:47,614 INFO L226 Difference]: Without dead ends: 1118 [2019-10-03 02:52:47,615 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-03 02:52:47,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1118 states. [2019-10-03 02:52:47,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1118 to 1117. [2019-10-03 02:52:47,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1117 states. [2019-10-03 02:52:47,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1117 states to 1117 states and 1712 transitions. [2019-10-03 02:52:47,664 INFO L78 Accepts]: Start accepts. Automaton has 1117 states and 1712 transitions. Word has length 193 [2019-10-03 02:52:47,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:52:47,665 INFO L475 AbstractCegarLoop]: Abstraction has 1117 states and 1712 transitions. [2019-10-03 02:52:47,665 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-03 02:52:47,665 INFO L276 IsEmpty]: Start isEmpty. Operand 1117 states and 1712 transitions. [2019-10-03 02:52:47,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2019-10-03 02:52:47,672 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:52:47,673 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:52:47,673 INFO L418 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:52:47,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:52:47,673 INFO L82 PathProgramCache]: Analyzing trace with hash -1576978066, now seen corresponding path program 1 times [2019-10-03 02:52:47,674 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:52:47,678 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:52:47,679 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:52:47,679 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:52:47,679 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:52:47,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:52:48,020 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2019-10-03 02:52:48,110 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:52:48,110 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-10-03 02:52:48,111 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:52:48,111 INFO L454 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-10-03 02:52:48,112 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-10-03 02:52:48,112 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2019-10-03 02:52:48,112 INFO L87 Difference]: Start difference. First operand 1117 states and 1712 transitions. Second operand 12 states. [2019-10-03 02:53:00,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:53:00,957 INFO L93 Difference]: Finished difference Result 3038 states and 4349 transitions. [2019-10-03 02:53:00,960 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2019-10-03 02:53:00,961 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 196 [2019-10-03 02:53:00,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:53:00,979 INFO L225 Difference]: With dead ends: 3038 [2019-10-03 02:53:00,979 INFO L226 Difference]: Without dead ends: 3026 [2019-10-03 02:53:00,981 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 539 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=377, Invalid=1515, Unknown=0, NotChecked=0, Total=1892 [2019-10-03 02:53:00,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3026 states. [2019-10-03 02:53:01,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3026 to 3001. [2019-10-03 02:53:01,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3001 states. [2019-10-03 02:53:01,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3001 states to 3001 states and 4253 transitions. [2019-10-03 02:53:01,083 INFO L78 Accepts]: Start accepts. Automaton has 3001 states and 4253 transitions. Word has length 196 [2019-10-03 02:53:01,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:53:01,084 INFO L475 AbstractCegarLoop]: Abstraction has 3001 states and 4253 transitions. [2019-10-03 02:53:01,084 INFO L476 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-10-03 02:53:01,085 INFO L276 IsEmpty]: Start isEmpty. Operand 3001 states and 4253 transitions. [2019-10-03 02:53:01,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2019-10-03 02:53:01,091 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:53:01,091 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:53:01,092 INFO L418 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:53:01,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:53:01,092 INFO L82 PathProgramCache]: Analyzing trace with hash -886808623, now seen corresponding path program 1 times [2019-10-03 02:53:01,092 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:53:01,096 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:53:01,096 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:53:01,096 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:53:01,096 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:53:01,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:53:01,405 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2019-10-03 02:53:01,406 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:53:01,406 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2019-10-03 02:53:01,406 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:53:01,407 INFO L454 AbstractCegarLoop]: Interpolant automaton has 18 states [2019-10-03 02:53:01,408 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2019-10-03 02:53:01,408 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=273, Unknown=0, NotChecked=0, Total=306 [2019-10-03 02:53:01,408 INFO L87 Difference]: Start difference. First operand 3001 states and 4253 transitions. Second operand 18 states. [2019-10-03 02:53:01,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:53:01,868 INFO L93 Difference]: Finished difference Result 2792 states and 4000 transitions. [2019-10-03 02:53:01,869 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2019-10-03 02:53:01,869 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 197 [2019-10-03 02:53:01,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:53:01,887 INFO L225 Difference]: With dead ends: 2792 [2019-10-03 02:53:01,887 INFO L226 Difference]: Without dead ends: 2762 [2019-10-03 02:53:01,888 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=61, Invalid=539, Unknown=0, NotChecked=0, Total=600 [2019-10-03 02:53:01,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2762 states. [2019-10-03 02:53:01,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2762 to 2760. [2019-10-03 02:53:01,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2760 states. [2019-10-03 02:53:01,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2760 states to 2760 states and 3926 transitions. [2019-10-03 02:53:01,990 INFO L78 Accepts]: Start accepts. Automaton has 2760 states and 3926 transitions. Word has length 197 [2019-10-03 02:53:01,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:53:01,990 INFO L475 AbstractCegarLoop]: Abstraction has 2760 states and 3926 transitions. [2019-10-03 02:53:01,990 INFO L476 AbstractCegarLoop]: Interpolant automaton has 18 states. [2019-10-03 02:53:01,991 INFO L276 IsEmpty]: Start isEmpty. Operand 2760 states and 3926 transitions. [2019-10-03 02:53:02,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2019-10-03 02:53:02,000 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:53:02,001 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:53:02,001 INFO L418 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:53:02,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:53:02,001 INFO L82 PathProgramCache]: Analyzing trace with hash -1141365715, now seen corresponding path program 1 times [2019-10-03 02:53:02,002 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:53:02,007 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:53:02,007 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:53:02,008 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:53:02,008 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:53:02,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:53:04,270 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 17 proven. 3 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2019-10-03 02:53:04,271 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-03 02:53:04,271 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-10-03 02:53:04,272 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 207 with the following transitions: [2019-10-03 02:53:04,274 INFO L207 CegarAbsIntRunner]: [59], [62], [71], [82], [85], [95], [106], [109], [119], [120], [136], [139], [153], [154], [156], [266], [269], [270], [271], [274], [280], [314], [316], [320], [323], [332], [345], [347], [348], [351], [361], [397], [436], [621], [623], [624], [625], [631], [634], [640], [661], [664], [678], [707], [708], [709], [712], [718], [719], [721], [723], [736], [738], [742], [745], [759], [763], [766], [784], [787], [808], [814], [823], [827], [829], [831], [834], [841], [848], [851], [853], [989], [991], [1008], [1012], [1015], [1029], [1137], [1139], [1140], [1141], [1144], [1146], [1148], [1151], [1170], [1224], [1246], [1257], [1260], [1261], [1264], [1267], [1298], [1301], [1303], [1416], [1419], [1433], [1439], [1442], [1451], [1505], [1508], [1517], [1645], [1647], [1649], [1651], [1652], [1685], [1695], [1696], [1697], [1698], [1699], [1700], [1703], [1704], [1705], [1706], [1719], [1720], [1721], [1722], [1723], [1729], [1730], [1741], [1757], [1758], [1775], [1776], [1789], [1790], [1791], [1792], [1793], [1795], [1796], [1797], [1798], [1799], [1800], [1801], [1802], [1803], [1804], [1805], [1806], [1807], [1808], [1809], [1811], [1812], [1813], [1814], [1821], [1829], [1830], [1847], [1849], [1850], [1867], [1869], [1870], [1871], [1872], [1873], [1874], [1875], [1883], [1884], [1885], [1887], [1888], [1889], [1890], [1891], [1892], [1893], [1913], [1914], [1915], [1916], [1917], [1918], [1919], [1920], [1921] [2019-10-03 02:53:04,317 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-10-03 02:53:04,318 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-03 02:53:04,430 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-10-03 02:53:04,432 INFO L272 AbstractInterpreter]: Visited 2 different actions 2 times. Never merged. Never widened. Performed 210 root evaluator evaluations with a maximum evaluation depth of 0. Performed 210 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 386 variables. [2019-10-03 02:53:04,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:53:04,437 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-10-03 02:53:04,513 INFO L219 lantSequenceWeakener]: Could never weaken! [2019-10-03 02:53:04,514 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-10-03 02:53:04,526 INFO L420 sIntCurrentIteration]: We unified 205 AI predicates to 205 [2019-10-03 02:53:04,526 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-10-03 02:53:04,527 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-03 02:53:04,530 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [55] total 55 [2019-10-03 02:53:04,530 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:53:04,530 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-03 02:53:04,531 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-03 02:53:04,531 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-03 02:53:04,531 INFO L87 Difference]: Start difference. First operand 2760 states and 3926 transitions. Second operand 2 states. [2019-10-03 02:53:04,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:53:04,532 INFO L93 Difference]: Finished difference Result 2 states and 1 transitions. [2019-10-03 02:53:04,532 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-03 02:53:04,532 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 206 [2019-10-03 02:53:04,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:53:04,533 INFO L225 Difference]: With dead ends: 2 [2019-10-03 02:53:04,533 INFO L226 Difference]: Without dead ends: 0 [2019-10-03 02:53:04,533 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 205 GetRequests, 205 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-03 02:53:04,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-03 02:53:04,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-03 02:53:04,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-03 02:53:04,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-03 02:53:04,534 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 206 [2019-10-03 02:53:04,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:53:04,534 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-03 02:53:04,534 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-03 02:53:04,534 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-03 02:53:04,534 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-03 02:53:04,540 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.10 02:53:04 BoogieIcfgContainer [2019-10-03 02:53:04,540 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-03 02:53:04,542 INFO L168 Benchmark]: Toolchain (without parser) took 23324.73 ms. Allocated memory was 133.7 MB in the beginning and 595.6 MB in the end (delta: 461.9 MB). Free memory was 86.8 MB in the beginning and 58.6 MB in the end (delta: 28.2 MB). Peak memory consumption was 490.1 MB. Max. memory is 7.1 GB. [2019-10-03 02:53:04,543 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 133.7 MB. Free memory was 108.0 MB in the beginning and 107.8 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-10-03 02:53:04,544 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1103.21 ms. Allocated memory was 133.7 MB in the beginning and 199.2 MB in the end (delta: 65.5 MB). Free memory was 86.6 MB in the beginning and 131.6 MB in the end (delta: -45.0 MB). Peak memory consumption was 36.2 MB. Max. memory is 7.1 GB. [2019-10-03 02:53:04,545 INFO L168 Benchmark]: Boogie Preprocessor took 214.30 ms. Allocated memory is still 199.2 MB. Free memory was 131.6 MB in the beginning and 121.9 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. [2019-10-03 02:53:04,546 INFO L168 Benchmark]: RCFGBuilder took 2243.66 ms. Allocated memory was 199.2 MB in the beginning and 263.7 MB in the end (delta: 64.5 MB). Free memory was 121.9 MB in the beginning and 143.1 MB in the end (delta: -21.2 MB). Peak memory consumption was 83.8 MB. Max. memory is 7.1 GB. [2019-10-03 02:53:04,547 INFO L168 Benchmark]: TraceAbstraction took 19758.89 ms. Allocated memory was 263.7 MB in the beginning and 595.6 MB in the end (delta: 331.9 MB). Free memory was 143.1 MB in the beginning and 58.6 MB in the end (delta: 84.5 MB). Peak memory consumption was 416.4 MB. Max. memory is 7.1 GB. [2019-10-03 02:53:04,551 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 133.7 MB. Free memory was 108.0 MB in the beginning and 107.8 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1103.21 ms. Allocated memory was 133.7 MB in the beginning and 199.2 MB in the end (delta: 65.5 MB). Free memory was 86.6 MB in the beginning and 131.6 MB in the end (delta: -45.0 MB). Peak memory consumption was 36.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 214.30 ms. Allocated memory is still 199.2 MB. Free memory was 131.6 MB in the beginning and 121.9 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 2243.66 ms. Allocated memory was 199.2 MB in the beginning and 263.7 MB in the end (delta: 64.5 MB). Free memory was 121.9 MB in the beginning and 143.1 MB in the end (delta: -21.2 MB). Peak memory consumption was 83.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 19758.89 ms. Allocated memory was 263.7 MB in the beginning and 595.6 MB in the end (delta: 331.9 MB). Free memory was 143.1 MB in the beginning and 58.6 MB in the end (delta: 84.5 MB). Peak memory consumption was 416.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 960]: 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 115 procedures, 791 locations, 1 error locations. SAFE Result, 19.6s OverallTime, 9 OverallIterations, 3 TraceHistogramMax, 13.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 6327 SDtfs, 3744 SDslu, 16364 SDs, 0 SdLazy, 10282 SolverSat, 2132 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 10.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 305 GetRequests, 235 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 560 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3001occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.1s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 1.0 AbsIntWeakeningRatio, 2.229268292682927 AbsIntAvgWeakeningVarsNumRemoved, 0.0 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 9 MinimizatonAttempts, 32 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.2s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 3.2s InterpolantComputationTime, 1724 NumberOfCodeBlocks, 1724 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 1715 ConstructedInterpolants, 0 QuantifiedInterpolants, 593337 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 8 PerfectInterpolantSequences, 263/266 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...