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/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --abstractinterpretationv2.abstract.domain IntervalDomain --traceabstraction.trace.refinement.strategy TAIPAN --traceabstraction.abstract.interpretation.mode USE_PREDICATES -i ../../../trunk/examples/svcomp/product-lines/email_spec0_product34.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 21:12:59,112 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 21:12:59,115 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 21:12:59,134 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 21:12:59,134 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 21:12:59,135 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 21:12:59,136 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 21:12:59,138 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 21:12:59,140 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 21:12:59,141 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 21:12:59,142 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 21:12:59,143 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 21:12:59,144 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 21:12:59,145 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 21:12:59,146 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 21:12:59,147 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 21:12:59,148 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 21:12:59,149 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 21:12:59,150 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 21:12:59,152 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 21:12:59,154 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 21:12:59,155 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 21:12:59,156 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 21:12:59,157 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 21:12:59,159 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 21:12:59,160 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 21:12:59,160 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 21:12:59,161 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 21:12:59,161 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 21:12:59,162 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 21:12:59,163 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 21:12:59,163 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 21:12:59,164 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 21:12:59,165 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 21:12:59,166 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 21:12:59,166 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 21:12:59,167 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 21:12:59,167 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 21:12:59,168 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 21:12:59,168 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 21:12:59,169 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 21:12:59,170 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-13 21:12:59,184 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 21:12:59,185 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 21:12:59,186 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 21:12:59,186 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 21:12:59,186 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 21:12:59,187 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 21:12:59,187 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 21:12:59,187 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 21:12:59,187 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 21:12:59,187 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 21:12:59,188 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 21:12:59,188 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 21:12:59,188 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 21:12:59,188 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 21:12:59,189 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 21:12:59,189 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 21:12:59,189 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 21:12:59,189 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 21:12:59,189 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 21:12:59,190 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 21:12:59,190 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 21:12:59,190 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 21:12:59,190 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 21:12:59,191 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 21:12:59,191 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 21:12:59,191 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 21:12:59,191 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 21:12:59,191 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 21:12:59,192 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstract interpretation Mode -> USE_PREDICATES [2019-10-13 21:12:59,522 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 21:12:59,545 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 21:12:59,549 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 21:12:59,550 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 21:12:59,551 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 21:12:59,552 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec0_product34.cil.c [2019-10-13 21:12:59,631 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/468f0d0a3/f8521e24572a4ae09d5d879ce47f27bc/FLAG0f2b2757b [2019-10-13 21:13:00,276 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 21:13:00,276 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec0_product34.cil.c [2019-10-13 21:13:00,303 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/468f0d0a3/f8521e24572a4ae09d5d879ce47f27bc/FLAG0f2b2757b [2019-10-13 21:13:00,486 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/468f0d0a3/f8521e24572a4ae09d5d879ce47f27bc [2019-10-13 21:13:00,496 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 21:13:00,497 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 21:13:00,498 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 21:13:00,498 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 21:13:00,502 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 21:13:00,503 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:13:00" (1/1) ... [2019-10-13 21:13:00,506 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4872b234 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:13:00, skipping insertion in model container [2019-10-13 21:13:00,506 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:13:00" (1/1) ... [2019-10-13 21:13:00,513 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 21:13:00,603 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 21:13:01,392 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 21:13:01,418 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 21:13:01,577 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 21:13:01,737 INFO L192 MainTranslator]: Completed translation [2019-10-13 21:13:01,738 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:13:01 WrapperNode [2019-10-13 21:13:01,738 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 21:13:01,740 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 21:13:01,740 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 21:13:01,740 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 21:13:01,762 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:13:01" (1/1) ... [2019-10-13 21:13:01,762 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:13:01" (1/1) ... [2019-10-13 21:13:01,796 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:13:01" (1/1) ... [2019-10-13 21:13:01,797 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:13:01" (1/1) ... [2019-10-13 21:13:01,854 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:13:01" (1/1) ... [2019-10-13 21:13:01,887 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:13:01" (1/1) ... [2019-10-13 21:13:01,908 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:13:01" (1/1) ... [2019-10-13 21:13:01,937 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 21:13:01,937 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 21:13:01,938 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 21:13:01,938 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 21:13:01,939 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:13:01" (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 [2019-10-13 21:13:02,012 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 21:13:02,013 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 21:13:02,013 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-13 21:13:02,014 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-13 21:13:02,014 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-13 21:13:02,014 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-13 21:13:02,014 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-13 21:13:02,015 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-13 21:13:02,015 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-13 21:13:02,015 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-13 21:13:02,017 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-13 21:13:02,018 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-13 21:13:02,018 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 21:13:02,019 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-13 21:13:02,019 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-13 21:13:02,019 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-13 21:13:02,022 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-13 21:13:02,023 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-13 21:13:02,023 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-13 21:13:02,023 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-13 21:13:02,023 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-13 21:13:02,023 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-13 21:13:02,024 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-10-13 21:13:02,024 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-10-13 21:13:02,024 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-13 21:13:02,024 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-13 21:13:02,024 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-13 21:13:02,024 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-13 21:13:02,025 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-13 21:13:02,025 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-13 21:13:02,025 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-13 21:13:02,025 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-13 21:13:02,025 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-13 21:13:02,025 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-13 21:13:02,025 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-13 21:13:02,026 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-13 21:13:02,026 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-13 21:13:02,026 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-13 21:13:02,027 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-13 21:13:02,027 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-13 21:13:02,027 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-13 21:13:02,027 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-13 21:13:02,027 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-13 21:13:02,028 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-13 21:13:02,028 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-13 21:13:02,028 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-13 21:13:02,028 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-13 21:13:02,028 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-13 21:13:02,028 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-13 21:13:02,028 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-13 21:13:02,029 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-13 21:13:02,029 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-13 21:13:02,029 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-13 21:13:02,029 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-13 21:13:02,029 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-13 21:13:02,029 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-13 21:13:02,030 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-13 21:13:02,030 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-13 21:13:02,030 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-13 21:13:02,030 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-13 21:13:02,030 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-13 21:13:02,030 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-13 21:13:02,031 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-13 21:13:02,031 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-13 21:13:02,031 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-13 21:13:02,031 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-13 21:13:02,031 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__AddressBook [2019-10-13 21:13:02,032 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Forward [2019-10-13 21:13:02,032 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-13 21:13:02,032 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-13 21:13:02,032 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-13 21:13:02,032 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-13 21:13:02,032 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-13 21:13:02,033 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-13 21:13:02,034 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-13 21:13:02,034 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-13 21:13:02,034 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-13 21:13:02,034 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-13 21:13:02,034 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-13 21:13:02,035 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-13 21:13:02,035 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-13 21:13:02,035 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-13 21:13:02,035 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-13 21:13:02,035 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-13 21:13:02,036 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-13 21:13:02,037 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-13 21:13:02,037 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-13 21:13:02,038 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-13 21:13:02,038 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-13 21:13:02,038 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-13 21:13:02,038 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-13 21:13:02,038 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-13 21:13:02,038 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-13 21:13:02,039 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-13 21:13:02,039 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__DecryptForward_spec__1 [2019-10-13 21:13:02,039 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-13 21:13:02,039 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-13 21:13:02,039 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-13 21:13:02,039 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Encrypt [2019-10-13 21:13:02,039 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AddressBook [2019-10-13 21:13:02,040 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-13 21:13:02,040 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-13 21:13:02,040 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-10-13 21:13:02,040 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Forward [2019-10-13 21:13:02,040 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Verify [2019-10-13 21:13:02,040 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-13 21:13:02,040 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-13 21:13:02,041 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-13 21:13:02,041 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-13 21:13:02,041 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-13 21:13:02,041 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-13 21:13:02,041 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-13 21:13:02,041 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-13 21:13:02,042 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-13 21:13:02,042 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-10-13 21:13:02,042 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-13 21:13:02,042 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-10-13 21:13:02,043 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-13 21:13:02,043 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 21:13:02,043 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 21:13:02,044 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-13 21:13:02,044 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-13 21:13:02,044 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-13 21:13:02,044 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-13 21:13:02,045 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-13 21:13:02,046 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-13 21:13:02,046 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-13 21:13:02,046 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-13 21:13:02,046 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-13 21:13:02,046 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-13 21:13:02,046 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-13 21:13:02,047 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-13 21:13:02,047 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-13 21:13:02,047 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-13 21:13:02,047 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-13 21:13:02,048 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-13 21:13:02,049 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-13 21:13:02,052 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-13 21:13:02,052 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-13 21:13:02,053 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-13 21:13:02,053 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-13 21:13:02,054 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-13 21:13:02,054 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-13 21:13:02,055 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-13 21:13:02,063 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-13 21:13:02,063 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-13 21:13:02,064 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-13 21:13:02,064 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-13 21:13:02,064 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-13 21:13:02,064 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 21:13:02,064 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-13 21:13:02,064 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-13 21:13:02,065 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-13 21:13:02,065 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-13 21:13:02,065 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-13 21:13:02,066 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-13 21:13:02,066 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-13 21:13:02,066 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-13 21:13:02,066 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-13 21:13:02,066 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-10-13 21:13:02,066 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-10-13 21:13:02,067 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-13 21:13:02,067 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-13 21:13:02,067 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-13 21:13:02,067 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 21:13:02,067 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-13 21:13:02,067 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-13 21:13:02,068 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-13 21:13:02,068 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-13 21:13:02,068 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-13 21:13:02,068 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-13 21:13:02,068 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-13 21:13:02,068 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-13 21:13:02,069 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-13 21:13:02,069 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-13 21:13:02,069 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-13 21:13:02,069 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-13 21:13:02,069 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-13 21:13:02,069 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-13 21:13:02,069 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-13 21:13:02,070 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-13 21:13:02,070 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-13 21:13:02,070 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-13 21:13:02,070 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-13 21:13:02,070 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-13 21:13:02,070 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-13 21:13:02,071 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 21:13:02,071 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 21:13:02,071 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-13 21:13:02,071 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 21:13:02,071 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 21:13:02,071 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 21:13:02,072 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 21:13:02,072 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-13 21:13:02,072 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 21:13:02,072 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-13 21:13:02,072 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-13 21:13:02,072 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 21:13:02,072 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-13 21:13:02,073 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-13 21:13:02,073 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-13 21:13:02,073 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-13 21:13:02,073 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-13 21:13:02,073 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-13 21:13:02,073 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-13 21:13:02,074 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-13 21:13:02,074 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-13 21:13:02,074 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-13 21:13:02,074 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-13 21:13:02,074 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-13 21:13:02,074 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-13 21:13:02,074 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-13 21:13:02,075 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-13 21:13:02,075 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-13 21:13:02,075 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-13 21:13:02,075 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-13 21:13:02,075 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__AddressBook [2019-10-13 21:13:02,075 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Forward [2019-10-13 21:13:02,075 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-13 21:13:02,076 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-13 21:13:02,076 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-13 21:13:02,076 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-13 21:13:02,076 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-13 21:13:02,076 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-13 21:13:02,076 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-13 21:13:02,077 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-13 21:13:02,077 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-13 21:13:02,077 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-13 21:13:02,077 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-13 21:13:02,077 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-13 21:13:02,077 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__DecryptForward_spec__1 [2019-10-13 21:13:02,078 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-13 21:13:02,078 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-13 21:13:02,078 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-13 21:13:02,078 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-13 21:13:02,078 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-13 21:13:02,078 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-13 21:13:02,079 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-13 21:13:02,079 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-10-13 21:13:02,079 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-13 21:13:02,079 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-10-13 21:13:02,079 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-13 21:13:02,079 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-13 21:13:02,080 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Encrypt [2019-10-13 21:13:02,080 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AddressBook [2019-10-13 21:13:02,080 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-10-13 21:13:02,080 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Forward [2019-10-13 21:13:02,080 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Verify [2019-10-13 21:13:02,080 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 21:13:02,081 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 21:13:02,081 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 21:13:04,380 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 21:13:04,380 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-13 21:13:04,384 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:13:04 BoogieIcfgContainer [2019-10-13 21:13:04,385 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 21:13:04,386 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 21:13:04,386 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 21:13:04,389 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 21:13:04,390 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 09:13:00" (1/3) ... [2019-10-13 21:13:04,391 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3313b239 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:13:04, skipping insertion in model container [2019-10-13 21:13:04,391 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:13:01" (2/3) ... [2019-10-13 21:13:04,391 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3313b239 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:13:04, skipping insertion in model container [2019-10-13 21:13:04,392 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:13:04" (3/3) ... [2019-10-13 21:13:04,393 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec0_product34.cil.c [2019-10-13 21:13:04,404 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 21:13:04,414 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 21:13:04,426 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 21:13:04,466 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 21:13:04,466 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 21:13:04,466 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 21:13:04,466 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 21:13:04,467 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 21:13:04,470 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 21:13:04,470 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 21:13:04,470 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 21:13:04,517 INFO L276 IsEmpty]: Start isEmpty. Operand 648 states. [2019-10-13 21:13:04,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2019-10-13 21:13:04,557 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:13:04,560 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:13:04,563 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:13:04,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:13:04,570 INFO L82 PathProgramCache]: Analyzing trace with hash -954538769, now seen corresponding path program 1 times [2019-10-13 21:13:04,580 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:13:04,580 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [246574777] [2019-10-13 21:13:04,581 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:13:04,581 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:13:04,581 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:13:05,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:13:05,380 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2019-10-13 21:13:05,381 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [246574777] [2019-10-13 21:13:05,382 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:13:05,382 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-13 21:13:05,383 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1708506196] [2019-10-13 21:13:05,390 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 21:13:05,392 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:13:05,406 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 21:13:05,407 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 21:13:05,410 INFO L87 Difference]: Start difference. First operand 648 states. Second operand 2 states. [2019-10-13 21:13:05,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:13:05,499 INFO L93 Difference]: Finished difference Result 982 states and 1325 transitions. [2019-10-13 21:13:05,499 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 21:13:05,501 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 230 [2019-10-13 21:13:05,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:13:05,529 INFO L225 Difference]: With dead ends: 982 [2019-10-13 21:13:05,530 INFO L226 Difference]: Without dead ends: 619 [2019-10-13 21:13:05,544 INFO L600 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 [2019-10-13 21:13:05,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 619 states. [2019-10-13 21:13:05,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 619 to 619. [2019-10-13 21:13:05,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 619 states. [2019-10-13 21:13:05,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 619 states to 619 states and 839 transitions. [2019-10-13 21:13:05,700 INFO L78 Accepts]: Start accepts. Automaton has 619 states and 839 transitions. Word has length 230 [2019-10-13 21:13:05,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:13:05,704 INFO L462 AbstractCegarLoop]: Abstraction has 619 states and 839 transitions. [2019-10-13 21:13:05,704 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 21:13:05,704 INFO L276 IsEmpty]: Start isEmpty. Operand 619 states and 839 transitions. [2019-10-13 21:13:05,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2019-10-13 21:13:05,715 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:13:05,716 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:13:05,716 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:13:05,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:13:05,717 INFO L82 PathProgramCache]: Analyzing trace with hash -1328868088, now seen corresponding path program 1 times [2019-10-13 21:13:05,717 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:13:05,717 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1737516481] [2019-10-13 21:13:05,717 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:13:05,718 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:13:05,718 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:13:05,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:13:06,102 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2019-10-13 21:13:06,103 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1737516481] [2019-10-13 21:13:06,103 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:13:06,103 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:13:06,103 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030292966] [2019-10-13 21:13:06,108 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:13:06,108 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:13:06,108 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:13:06,109 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:13:06,109 INFO L87 Difference]: Start difference. First operand 619 states and 839 transitions. Second operand 3 states. [2019-10-13 21:13:06,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:13:06,174 INFO L93 Difference]: Finished difference Result 965 states and 1286 transitions. [2019-10-13 21:13:06,174 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:13:06,174 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 231 [2019-10-13 21:13:06,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:13:06,181 INFO L225 Difference]: With dead ends: 965 [2019-10-13 21:13:06,181 INFO L226 Difference]: Without dead ends: 622 [2019-10-13 21:13:06,184 INFO L600 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 [2019-10-13 21:13:06,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 622 states. [2019-10-13 21:13:06,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 622 to 621. [2019-10-13 21:13:06,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 621 states. [2019-10-13 21:13:06,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 621 states to 621 states and 841 transitions. [2019-10-13 21:13:06,213 INFO L78 Accepts]: Start accepts. Automaton has 621 states and 841 transitions. Word has length 231 [2019-10-13 21:13:06,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:13:06,214 INFO L462 AbstractCegarLoop]: Abstraction has 621 states and 841 transitions. [2019-10-13 21:13:06,214 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:13:06,214 INFO L276 IsEmpty]: Start isEmpty. Operand 621 states and 841 transitions. [2019-10-13 21:13:06,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2019-10-13 21:13:06,219 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:13:06,220 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:13:06,220 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:13:06,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:13:06,220 INFO L82 PathProgramCache]: Analyzing trace with hash -1599924580, now seen corresponding path program 1 times [2019-10-13 21:13:06,221 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:13:06,221 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [847242857] [2019-10-13 21:13:06,221 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:13:06,221 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:13:06,221 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:13:06,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:13:06,479 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2019-10-13 21:13:06,480 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [847242857] [2019-10-13 21:13:06,480 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:13:06,480 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:13:06,481 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1552974499] [2019-10-13 21:13:06,481 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:13:06,482 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:13:06,482 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:13:06,483 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:13:06,483 INFO L87 Difference]: Start difference. First operand 621 states and 841 transitions. Second operand 3 states. [2019-10-13 21:13:06,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:13:06,531 INFO L93 Difference]: Finished difference Result 1220 states and 1683 transitions. [2019-10-13 21:13:06,532 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:13:06,532 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 237 [2019-10-13 21:13:06,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:13:06,541 INFO L225 Difference]: With dead ends: 1220 [2019-10-13 21:13:06,541 INFO L226 Difference]: Without dead ends: 664 [2019-10-13 21:13:06,544 INFO L600 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 [2019-10-13 21:13:06,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 664 states. [2019-10-13 21:13:06,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 664 to 663. [2019-10-13 21:13:06,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 663 states. [2019-10-13 21:13:06,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 663 states to 663 states and 913 transitions. [2019-10-13 21:13:06,595 INFO L78 Accepts]: Start accepts. Automaton has 663 states and 913 transitions. Word has length 237 [2019-10-13 21:13:06,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:13:06,596 INFO L462 AbstractCegarLoop]: Abstraction has 663 states and 913 transitions. [2019-10-13 21:13:06,598 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:13:06,598 INFO L276 IsEmpty]: Start isEmpty. Operand 663 states and 913 transitions. [2019-10-13 21:13:06,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2019-10-13 21:13:06,608 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:13:06,609 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:13:06,609 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:13:06,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:13:06,609 INFO L82 PathProgramCache]: Analyzing trace with hash -847945659, now seen corresponding path program 1 times [2019-10-13 21:13:06,610 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:13:06,610 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [238911794] [2019-10-13 21:13:06,610 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:13:06,610 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:13:06,610 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:13:06,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:13:07,115 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2019-10-13 21:13:07,116 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [238911794] [2019-10-13 21:13:07,116 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:13:07,116 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2019-10-13 21:13:07,116 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [319995921] [2019-10-13 21:13:07,117 INFO L442 AbstractCegarLoop]: Interpolant automaton has 19 states [2019-10-13 21:13:07,118 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:13:07,118 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2019-10-13 21:13:07,119 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=300, Unknown=0, NotChecked=0, Total=342 [2019-10-13 21:13:07,120 INFO L87 Difference]: Start difference. First operand 663 states and 913 transitions. Second operand 19 states. [2019-10-13 21:13:12,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:13:12,493 INFO L93 Difference]: Finished difference Result 2349 states and 3260 transitions. [2019-10-13 21:13:12,494 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2019-10-13 21:13:12,494 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 238 [2019-10-13 21:13:12,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:13:12,508 INFO L225 Difference]: With dead ends: 2349 [2019-10-13 21:13:12,508 INFO L226 Difference]: Without dead ends: 2019 [2019-10-13 21:13:12,513 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 708 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=287, Invalid=2683, Unknown=0, NotChecked=0, Total=2970 [2019-10-13 21:13:12,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2019 states. [2019-10-13 21:13:12,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2019 to 1982. [2019-10-13 21:13:12,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1982 states. [2019-10-13 21:13:12,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1982 states to 1982 states and 2755 transitions. [2019-10-13 21:13:12,656 INFO L78 Accepts]: Start accepts. Automaton has 1982 states and 2755 transitions. Word has length 238 [2019-10-13 21:13:12,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:13:12,657 INFO L462 AbstractCegarLoop]: Abstraction has 1982 states and 2755 transitions. [2019-10-13 21:13:12,657 INFO L463 AbstractCegarLoop]: Interpolant automaton has 19 states. [2019-10-13 21:13:12,657 INFO L276 IsEmpty]: Start isEmpty. Operand 1982 states and 2755 transitions. [2019-10-13 21:13:12,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2019-10-13 21:13:12,665 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:13:12,665 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:13:12,666 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:13:12,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:13:12,666 INFO L82 PathProgramCache]: Analyzing trace with hash 675164652, now seen corresponding path program 1 times [2019-10-13 21:13:12,667 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:13:12,667 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1740369233] [2019-10-13 21:13:12,667 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:13:12,667 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:13:12,667 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:13:12,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:13:13,006 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2019-10-13 21:13:13,006 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1740369233] [2019-10-13 21:13:13,007 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:13:13,007 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2019-10-13 21:13:13,007 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1686261514] [2019-10-13 21:13:13,008 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-10-13 21:13:13,008 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:13:13,009 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-10-13 21:13:13,009 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2019-10-13 21:13:13,009 INFO L87 Difference]: Start difference. First operand 1982 states and 2755 transitions. Second operand 13 states. [2019-10-13 21:13:13,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:13:13,575 INFO L93 Difference]: Finished difference Result 3503 states and 4864 transitions. [2019-10-13 21:13:13,575 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-10-13 21:13:13,575 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 239 [2019-10-13 21:13:13,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:13:13,594 INFO L225 Difference]: With dead ends: 3503 [2019-10-13 21:13:13,594 INFO L226 Difference]: Without dead ends: 2116 [2019-10-13 21:13:13,600 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=433, Unknown=0, NotChecked=0, Total=506 [2019-10-13 21:13:13,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2116 states. [2019-10-13 21:13:13,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2116 to 2116. [2019-10-13 21:13:13,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2116 states. [2019-10-13 21:13:13,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2116 states to 2116 states and 2972 transitions. [2019-10-13 21:13:13,780 INFO L78 Accepts]: Start accepts. Automaton has 2116 states and 2972 transitions. Word has length 239 [2019-10-13 21:13:13,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:13:13,782 INFO L462 AbstractCegarLoop]: Abstraction has 2116 states and 2972 transitions. [2019-10-13 21:13:13,782 INFO L463 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-10-13 21:13:13,782 INFO L276 IsEmpty]: Start isEmpty. Operand 2116 states and 2972 transitions. [2019-10-13 21:13:13,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2019-10-13 21:13:13,794 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:13:13,794 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:13:13,795 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:13:13,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:13:13,795 INFO L82 PathProgramCache]: Analyzing trace with hash -825982965, now seen corresponding path program 1 times [2019-10-13 21:13:13,796 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:13:13,796 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1970812189] [2019-10-13 21:13:13,796 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:13:13,796 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:13:13,797 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:13:13,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:13:14,215 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2019-10-13 21:13:14,216 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1970812189] [2019-10-13 21:13:14,216 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:13:14,216 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2019-10-13 21:13:14,216 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [641223158] [2019-10-13 21:13:14,217 INFO L442 AbstractCegarLoop]: Interpolant automaton has 15 states [2019-10-13 21:13:14,217 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:13:14,217 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2019-10-13 21:13:14,218 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=181, Unknown=0, NotChecked=0, Total=210 [2019-10-13 21:13:14,218 INFO L87 Difference]: Start difference. First operand 2116 states and 2972 transitions. Second operand 15 states. [2019-10-13 21:13:19,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:13:19,186 INFO L93 Difference]: Finished difference Result 3675 states and 5159 transitions. [2019-10-13 21:13:19,186 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2019-10-13 21:13:19,186 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 239 [2019-10-13 21:13:19,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:13:19,206 INFO L225 Difference]: With dead ends: 3675 [2019-10-13 21:13:19,206 INFO L226 Difference]: Without dead ends: 2234 [2019-10-13 21:13:19,213 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 513 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=229, Invalid=1933, Unknown=0, NotChecked=0, Total=2162 [2019-10-13 21:13:19,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2234 states. [2019-10-13 21:13:19,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2234 to 2197. [2019-10-13 21:13:19,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2197 states. [2019-10-13 21:13:19,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2197 states to 2197 states and 3112 transitions. [2019-10-13 21:13:19,367 INFO L78 Accepts]: Start accepts. Automaton has 2197 states and 3112 transitions. Word has length 239 [2019-10-13 21:13:19,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:13:19,368 INFO L462 AbstractCegarLoop]: Abstraction has 2197 states and 3112 transitions. [2019-10-13 21:13:19,368 INFO L463 AbstractCegarLoop]: Interpolant automaton has 15 states. [2019-10-13 21:13:19,368 INFO L276 IsEmpty]: Start isEmpty. Operand 2197 states and 3112 transitions. [2019-10-13 21:13:19,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2019-10-13 21:13:19,380 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:13:19,380 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:13:19,381 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:13:19,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:13:19,381 INFO L82 PathProgramCache]: Analyzing trace with hash 777468169, now seen corresponding path program 1 times [2019-10-13 21:13:19,381 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:13:19,382 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1471121008] [2019-10-13 21:13:19,382 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:13:19,382 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:13:19,382 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:13:19,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:13:19,804 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2019-10-13 21:13:19,804 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1471121008] [2019-10-13 21:13:19,804 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:13:19,805 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2019-10-13 21:13:19,805 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1764991749] [2019-10-13 21:13:19,806 INFO L442 AbstractCegarLoop]: Interpolant automaton has 15 states [2019-10-13 21:13:19,806 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:13:19,806 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2019-10-13 21:13:19,807 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=181, Unknown=0, NotChecked=0, Total=210 [2019-10-13 21:13:19,807 INFO L87 Difference]: Start difference. First operand 2197 states and 3112 transitions. Second operand 15 states. [2019-10-13 21:13:23,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:13:23,980 INFO L93 Difference]: Finished difference Result 3756 states and 5296 transitions. [2019-10-13 21:13:23,981 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2019-10-13 21:13:23,981 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 240 [2019-10-13 21:13:23,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:13:23,999 INFO L225 Difference]: With dead ends: 3756 [2019-10-13 21:13:23,999 INFO L226 Difference]: Without dead ends: 2234 [2019-10-13 21:13:24,006 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 513 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=229, Invalid=1933, Unknown=0, NotChecked=0, Total=2162 [2019-10-13 21:13:24,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2234 states. [2019-10-13 21:13:24,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2234 to 2197. [2019-10-13 21:13:24,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2197 states. [2019-10-13 21:13:24,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2197 states to 2197 states and 3112 transitions. [2019-10-13 21:13:24,131 INFO L78 Accepts]: Start accepts. Automaton has 2197 states and 3112 transitions. Word has length 240 [2019-10-13 21:13:24,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:13:24,132 INFO L462 AbstractCegarLoop]: Abstraction has 2197 states and 3112 transitions. [2019-10-13 21:13:24,132 INFO L463 AbstractCegarLoop]: Interpolant automaton has 15 states. [2019-10-13 21:13:24,132 INFO L276 IsEmpty]: Start isEmpty. Operand 2197 states and 3112 transitions. [2019-10-13 21:13:24,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2019-10-13 21:13:24,146 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:13:24,146 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:13:24,146 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:13:24,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:13:24,147 INFO L82 PathProgramCache]: Analyzing trace with hash -737302074, now seen corresponding path program 1 times [2019-10-13 21:13:24,147 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:13:24,147 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1941049437] [2019-10-13 21:13:24,148 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:13:24,148 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:13:24,148 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:13:24,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:13:24,401 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2019-10-13 21:13:24,401 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1941049437] [2019-10-13 21:13:24,402 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1527401018] [2019-10-13 21:13:24,402 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 21:13:25,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:13:25,142 INFO L256 TraceCheckSpWp]: Trace formula consists of 3217 conjuncts, 8 conjunts are in the unsatisfiable core [2019-10-13 21:13:25,166 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 21:13:25,405 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2019-10-13 21:13:25,405 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 21:13:25,802 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 21:13:25,877 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-13 21:13:25,933 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-13 21:13:26,088 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2019-10-13 21:13:26,089 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-13 21:13:26,089 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [5, 9] total 18 [2019-10-13 21:13:26,090 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117738756] [2019-10-13 21:13:26,092 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-13 21:13:26,092 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:13:26,092 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-13 21:13:26,093 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=255, Unknown=0, NotChecked=0, Total=306 [2019-10-13 21:13:26,093 INFO L87 Difference]: Start difference. First operand 2197 states and 3112 transitions. Second operand 9 states. [2019-10-13 21:13:28,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:13:28,832 INFO L93 Difference]: Finished difference Result 4372 states and 6204 transitions. [2019-10-13 21:13:28,832 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-13 21:13:28,833 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 242 [2019-10-13 21:13:28,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:13:28,852 INFO L225 Difference]: With dead ends: 4372 [2019-10-13 21:13:28,853 INFO L226 Difference]: Without dead ends: 2211 [2019-10-13 21:13:28,863 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 491 GetRequests, 468 SyntacticMatches, 4 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=72, Invalid=348, Unknown=0, NotChecked=0, Total=420 [2019-10-13 21:13:28,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2211 states. [2019-10-13 21:13:29,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2211 to 2211. [2019-10-13 21:13:29,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2211 states. [2019-10-13 21:13:29,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2211 states to 2211 states and 3130 transitions. [2019-10-13 21:13:29,040 INFO L78 Accepts]: Start accepts. Automaton has 2211 states and 3130 transitions. Word has length 242 [2019-10-13 21:13:29,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:13:29,041 INFO L462 AbstractCegarLoop]: Abstraction has 2211 states and 3130 transitions. [2019-10-13 21:13:29,041 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-13 21:13:29,042 INFO L276 IsEmpty]: Start isEmpty. Operand 2211 states and 3130 transitions. [2019-10-13 21:13:29,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2019-10-13 21:13:29,055 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:13:29,056 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:13:29,269 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 21:13:29,269 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:13:29,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:13:29,270 INFO L82 PathProgramCache]: Analyzing trace with hash 646127893, now seen corresponding path program 1 times [2019-10-13 21:13:29,270 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:13:29,271 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1193757356] [2019-10-13 21:13:29,271 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:13:29,271 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:13:29,271 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:13:29,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:13:29,608 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2019-10-13 21:13:29,608 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1193757356] [2019-10-13 21:13:29,609 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [631349808] [2019-10-13 21:13:29,609 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 21:13:30,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:13:30,248 INFO L256 TraceCheckSpWp]: Trace formula consists of 3216 conjuncts, 6 conjunts are in the unsatisfiable core [2019-10-13 21:13:30,279 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 21:13:30,494 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-13 21:13:30,495 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 21:13:30,751 WARN L191 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 6 [2019-10-13 21:13:31,036 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-13 21:13:31,106 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-13 21:13:31,239 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2019-10-13 21:13:31,240 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-13 21:13:31,240 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7, 7] total 16 [2019-10-13 21:13:31,241 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [794347093] [2019-10-13 21:13:31,242 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-13 21:13:31,242 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:13:31,242 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-13 21:13:31,243 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2019-10-13 21:13:31,243 INFO L87 Difference]: Start difference. First operand 2211 states and 3130 transitions. Second operand 7 states.