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 --traceabstraction.trace.refinement.strategy SIFA_TAIPAN --sifa.abstract.domain CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/product-lines/email_spec27_product13.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 23:08:24,476 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 23:08:24,480 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 23:08:24,498 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 23:08:24,499 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 23:08:24,500 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 23:08:24,501 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 23:08:24,509 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 23:08:24,511 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 23:08:24,514 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 23:08:24,515 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 23:08:24,517 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 23:08:24,517 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 23:08:24,518 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 23:08:24,519 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 23:08:24,520 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 23:08:24,521 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 23:08:24,521 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 23:08:24,523 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 23:08:24,525 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 23:08:24,526 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 23:08:24,530 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 23:08:24,531 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 23:08:24,532 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 23:08:24,535 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 23:08:24,535 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 23:08:24,537 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 23:08:24,538 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 23:08:24,539 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 23:08:24,539 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 23:08:24,540 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 23:08:24,542 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 23:08:24,543 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 23:08:24,545 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 23:08:24,549 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 23:08:24,549 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 23:08:24,550 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 23:08:24,550 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 23:08:24,550 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 23:08:24,553 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 23:08:24,555 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 23:08:24,556 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 23:08:24,578 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 23:08:24,578 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 23:08:24,579 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 23:08:24,580 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 23:08:24,580 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 23:08:24,580 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 23:08:24,580 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 23:08:24,581 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 23:08:24,581 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 23:08:24,581 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 23:08:24,581 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 23:08:24,581 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 23:08:24,582 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 23:08:24,582 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 23:08:24,582 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 23:08:24,582 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 23:08:24,582 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 23:08:24,583 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 23:08:24,583 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 23:08:24,583 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 23:08:24,583 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 23:08:24,583 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 23:08:24,584 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 23:08:24,584 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 23:08:24,584 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 23:08:24,584 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 23:08:24,584 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 23:08:24,585 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 23:08:24,585 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-10-13 23:08:24,851 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 23:08:24,870 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 23:08:24,874 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 23:08:24,875 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 23:08:24,875 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 23:08:24,876 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec27_product13.cil.c [2019-10-13 23:08:24,959 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/364087ed2/3fb16538e4254271a68a0517b7019476/FLAGea513e99f [2019-10-13 23:08:25,591 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 23:08:25,592 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec27_product13.cil.c [2019-10-13 23:08:25,614 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/364087ed2/3fb16538e4254271a68a0517b7019476/FLAGea513e99f [2019-10-13 23:08:25,805 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/364087ed2/3fb16538e4254271a68a0517b7019476 [2019-10-13 23:08:25,814 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 23:08:25,816 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 23:08:25,817 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 23:08:25,817 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 23:08:25,820 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 23:08:25,821 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:08:25" (1/1) ... [2019-10-13 23:08:25,824 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2bcdd84c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:08:25, skipping insertion in model container [2019-10-13 23:08:25,825 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:08:25" (1/1) ... [2019-10-13 23:08:25,831 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 23:08:25,901 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 23:08:26,692 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:08:26,720 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 23:08:26,879 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:08:26,959 INFO L192 MainTranslator]: Completed translation [2019-10-13 23:08:26,960 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:08:26 WrapperNode [2019-10-13 23:08:26,960 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 23:08:26,961 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 23:08:26,961 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 23:08:26,961 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 23:08:26,981 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:08:26" (1/1) ... [2019-10-13 23:08:26,981 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:08:26" (1/1) ... [2019-10-13 23:08:27,013 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:08:26" (1/1) ... [2019-10-13 23:08:27,014 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:08:26" (1/1) ... [2019-10-13 23:08:27,069 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:08:26" (1/1) ... [2019-10-13 23:08:27,090 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:08:26" (1/1) ... [2019-10-13 23:08:27,113 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:08:26" (1/1) ... [2019-10-13 23:08:27,143 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 23:08:27,144 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 23:08:27,147 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 23:08:27,148 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 23:08:27,149 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:08:26" (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 23:08:27,234 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 23:08:27,235 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 23:08:27,235 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-13 23:08:27,236 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-13 23:08:27,236 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-13 23:08:27,237 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-13 23:08:27,238 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-13 23:08:27,238 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-13 23:08:27,238 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-13 23:08:27,238 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-13 23:08:27,239 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-13 23:08:27,240 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-13 23:08:27,240 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-13 23:08:27,240 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-13 23:08:27,240 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-13 23:08:27,241 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Sign [2019-10-13 23:08:27,243 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-13 23:08:27,243 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-13 23:08:27,244 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-13 23:08:27,244 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-13 23:08:27,244 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-13 23:08:27,244 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-13 23:08:27,245 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-13 23:08:27,245 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-13 23:08:27,245 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-10-13 23:08:27,246 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-13 23:08:27,246 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-13 23:08:27,246 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-13 23:08:27,246 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-13 23:08:27,246 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-13 23:08:27,246 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-13 23:08:27,247 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-13 23:08:27,247 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-13 23:08:27,247 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-13 23:08:27,247 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-13 23:08:27,248 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-13 23:08:27,248 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-13 23:08:27,248 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-13 23:08:27,248 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-13 23:08:27,248 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-13 23:08:27,249 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-13 23:08:27,249 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-13 23:08:27,249 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-13 23:08:27,249 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-13 23:08:27,249 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-13 23:08:27,249 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-13 23:08:27,250 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-13 23:08:27,250 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-13 23:08:27,250 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-13 23:08:27,250 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-13 23:08:27,250 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-13 23:08:27,251 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-13 23:08:27,251 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-13 23:08:27,251 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-13 23:08:27,251 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-13 23:08:27,251 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-13 23:08:27,251 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-13 23:08:27,252 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-13 23:08:27,252 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-13 23:08:27,252 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-13 23:08:27,253 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-13 23:08:27,253 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-13 23:08:27,253 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-13 23:08:27,253 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-13 23:08:27,253 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-13 23:08:27,254 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-13 23:08:27,254 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-13 23:08:27,254 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-13 23:08:27,254 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-13 23:08:27,254 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-13 23:08:27,254 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-13 23:08:27,255 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-13 23:08:27,255 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-13 23:08:27,256 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-13 23:08:27,256 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 23:08:27,256 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-13 23:08:27,257 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-13 23:08:27,257 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-13 23:08:27,257 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-13 23:08:27,257 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-13 23:08:27,257 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-13 23:08:27,258 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-13 23:08:27,258 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-13 23:08:27,259 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-13 23:08:27,259 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__VerifyForward_spec__1 [2019-10-13 23:08:27,259 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-13 23:08:27,259 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-13 23:08:27,260 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-13 23:08:27,260 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-13 23:08:27,260 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-13 23:08:27,261 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-13 23:08:27,261 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-13 23:08:27,261 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-13 23:08:27,261 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-13 23:08:27,261 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-13 23:08:27,261 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-13 23:08:27,262 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-13 23:08:27,262 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-13 23:08:27,262 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-13 23:08:27,262 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-13 23:08:27,262 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-13 23:08:27,263 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-13 23:08:27,263 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-13 23:08:27,263 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-13 23:08:27,263 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-13 23:08:27,263 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-13 23:08:27,263 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-13 23:08:27,264 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-13 23:08:27,264 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 23:08:27,264 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 23:08:27,264 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-13 23:08:27,264 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-13 23:08:27,265 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 23:08:27,265 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-13 23:08:27,265 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 23:08:27,265 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 23:08:27,265 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-13 23:08:27,266 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 23:08:27,266 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 23:08:27,266 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 23:08:27,267 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 23:08:27,267 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-13 23:08:27,267 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 23:08:27,267 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-13 23:08:27,269 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-13 23:08:27,269 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 23:08:27,269 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-13 23:08:27,269 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-13 23:08:27,269 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-13 23:08:27,270 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-13 23:08:27,270 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-13 23:08:27,270 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-13 23:08:27,271 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-13 23:08:27,271 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-13 23:08:27,275 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-13 23:08:27,275 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-13 23:08:27,275 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-13 23:08:27,275 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-13 23:08:27,276 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-13 23:08:27,276 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-13 23:08:27,277 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-13 23:08:27,277 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-13 23:08:27,277 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-13 23:08:27,278 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-13 23:08:27,285 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-13 23:08:27,285 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-13 23:08:27,286 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Sign [2019-10-13 23:08:27,286 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-13 23:08:27,286 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-13 23:08:27,286 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-13 23:08:27,287 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-13 23:08:27,287 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-13 23:08:27,287 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-13 23:08:27,287 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-13 23:08:27,287 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-13 23:08:27,288 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-13 23:08:27,288 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-13 23:08:27,288 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-13 23:08:27,288 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-13 23:08:27,288 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-13 23:08:27,288 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-13 23:08:27,289 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-13 23:08:27,289 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-13 23:08:27,289 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-13 23:08:27,289 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-13 23:08:27,290 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-13 23:08:27,290 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-13 23:08:27,290 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-13 23:08:27,290 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-13 23:08:27,290 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-13 23:08:27,290 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-13 23:08:27,291 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__VerifyForward_spec__1 [2019-10-13 23:08:27,291 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-10-13 23:08:27,291 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-13 23:08:27,291 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-13 23:08:27,291 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-13 23:08:27,291 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-13 23:08:27,291 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-13 23:08:27,291 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-13 23:08:27,292 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-13 23:08:27,292 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-13 23:08:27,292 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-13 23:08:27,292 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-13 23:08:27,292 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-13 23:08:27,292 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-13 23:08:27,292 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-13 23:08:27,293 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-13 23:08:27,293 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-13 23:08:27,293 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-13 23:08:27,293 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-13 23:08:27,293 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-13 23:08:27,294 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-13 23:08:27,294 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-13 23:08:27,294 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-13 23:08:27,294 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-13 23:08:27,294 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-13 23:08:27,294 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-13 23:08:27,294 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-13 23:08:27,295 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-13 23:08:27,295 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-13 23:08:27,295 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-13 23:08:27,295 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-13 23:08:27,295 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-13 23:08:27,295 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-13 23:08:27,295 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 23:08:27,295 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-13 23:08:27,296 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-13 23:08:27,296 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-13 23:08:27,296 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-13 23:08:27,296 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-13 23:08:27,296 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-13 23:08:27,296 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-13 23:08:27,296 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-13 23:08:27,296 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-13 23:08:27,297 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-13 23:08:27,297 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-13 23:08:27,297 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-13 23:08:27,297 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-13 23:08:27,297 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-13 23:08:27,297 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-13 23:08:27,297 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-13 23:08:27,297 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-13 23:08:27,298 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-13 23:08:27,298 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-13 23:08:27,298 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-13 23:08:27,298 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-13 23:08:27,298 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-13 23:08:27,298 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-13 23:08:27,298 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 23:08:27,299 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 23:08:27,299 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 23:08:31,557 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 23:08:31,558 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-13 23:08:31,560 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:08:31 BoogieIcfgContainer [2019-10-13 23:08:31,560 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 23:08:31,561 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 23:08:31,562 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 23:08:31,565 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 23:08:31,565 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 11:08:25" (1/3) ... [2019-10-13 23:08:31,566 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fa1f67d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:08:31, skipping insertion in model container [2019-10-13 23:08:31,566 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:08:26" (2/3) ... [2019-10-13 23:08:31,566 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fa1f67d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:08:31, skipping insertion in model container [2019-10-13 23:08:31,566 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:08:31" (3/3) ... [2019-10-13 23:08:31,568 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec27_product13.cil.c [2019-10-13 23:08:31,578 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 23:08:31,586 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 23:08:31,598 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 23:08:31,675 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 23:08:31,675 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 23:08:31,675 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 23:08:31,675 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 23:08:31,675 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 23:08:31,675 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 23:08:31,676 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 23:08:31,676 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 23:08:31,705 INFO L276 IsEmpty]: Start isEmpty. Operand 326 states. [2019-10-13 23:08:31,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2019-10-13 23:08:31,731 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:08:31,733 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 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] [2019-10-13 23:08:31,735 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:08:31,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:08:31,741 INFO L82 PathProgramCache]: Analyzing trace with hash -1038077492, now seen corresponding path program 1 times [2019-10-13 23:08:31,752 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:08:31,753 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1210983851] [2019-10-13 23:08:31,753 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:08:31,753 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:08:31,753 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:08:32,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:08:32,395 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-13 23:08:32,396 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1210983851] [2019-10-13 23:08:32,397 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:08:32,397 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-13 23:08:32,398 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430689606] [2019-10-13 23:08:32,403 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 23:08:32,403 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:08:32,414 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 23:08:32,415 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 23:08:32,417 INFO L87 Difference]: Start difference. First operand 326 states. Second operand 2 states. [2019-10-13 23:08:32,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:08:32,471 INFO L93 Difference]: Finished difference Result 439 states and 515 transitions. [2019-10-13 23:08:32,471 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 23:08:32,472 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 141 [2019-10-13 23:08:32,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:08:32,490 INFO L225 Difference]: With dead ends: 439 [2019-10-13 23:08:32,491 INFO L226 Difference]: Without dead ends: 291 [2019-10-13 23:08:32,495 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 23:08:32,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291 states. [2019-10-13 23:08:32,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291 to 291. [2019-10-13 23:08:32,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 291 states. [2019-10-13 23:08:32,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 291 states to 291 states and 341 transitions. [2019-10-13 23:08:32,575 INFO L78 Accepts]: Start accepts. Automaton has 291 states and 341 transitions. Word has length 141 [2019-10-13 23:08:32,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:08:32,577 INFO L462 AbstractCegarLoop]: Abstraction has 291 states and 341 transitions. [2019-10-13 23:08:32,577 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 23:08:32,577 INFO L276 IsEmpty]: Start isEmpty. Operand 291 states and 341 transitions. [2019-10-13 23:08:32,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2019-10-13 23:08:32,582 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:08:32,582 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:08:32,583 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:08:32,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:08:32,583 INFO L82 PathProgramCache]: Analyzing trace with hash 1582578031, now seen corresponding path program 1 times [2019-10-13 23:08:32,583 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:08:32,584 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [545686528] [2019-10-13 23:08:32,584 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:08:32,584 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:08:32,584 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:08:32,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:08:32,778 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-13 23:08:32,778 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [545686528] [2019-10-13 23:08:32,778 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:08:32,779 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:08:32,779 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [599595077] [2019-10-13 23:08:32,784 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:08:32,784 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:08:32,785 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:08:32,785 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:08:32,785 INFO L87 Difference]: Start difference. First operand 291 states and 341 transitions. Second operand 3 states. [2019-10-13 23:08:32,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:08:32,870 INFO L93 Difference]: Finished difference Result 424 states and 484 transitions. [2019-10-13 23:08:32,870 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:08:32,871 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 142 [2019-10-13 23:08:32,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:08:32,879 INFO L225 Difference]: With dead ends: 424 [2019-10-13 23:08:32,880 INFO L226 Difference]: Without dead ends: 293 [2019-10-13 23:08:32,883 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 23:08:32,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2019-10-13 23:08:32,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 293. [2019-10-13 23:08:32,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 293 states. [2019-10-13 23:08:32,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 293 states and 343 transitions. [2019-10-13 23:08:32,934 INFO L78 Accepts]: Start accepts. Automaton has 293 states and 343 transitions. Word has length 142 [2019-10-13 23:08:32,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:08:32,936 INFO L462 AbstractCegarLoop]: Abstraction has 293 states and 343 transitions. [2019-10-13 23:08:32,936 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:08:32,936 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states and 343 transitions. [2019-10-13 23:08:32,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2019-10-13 23:08:32,941 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:08:32,942 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:08:32,942 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:08:32,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:08:32,944 INFO L82 PathProgramCache]: Analyzing trace with hash 1096482442, now seen corresponding path program 1 times [2019-10-13 23:08:32,945 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:08:32,945 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1881644107] [2019-10-13 23:08:32,945 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:08:32,945 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:08:32,945 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:08:33,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:08:33,197 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-13 23:08:33,197 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1881644107] [2019-10-13 23:08:33,198 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:08:33,198 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:08:33,198 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207129814] [2019-10-13 23:08:33,200 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:08:33,200 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:08:33,200 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:08:33,200 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:08:33,201 INFO L87 Difference]: Start difference. First operand 293 states and 343 transitions. Second operand 3 states. [2019-10-13 23:08:33,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:08:33,253 INFO L93 Difference]: Finished difference Result 566 states and 690 transitions. [2019-10-13 23:08:33,254 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:08:33,254 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 147 [2019-10-13 23:08:33,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:08:33,262 INFO L225 Difference]: With dead ends: 566 [2019-10-13 23:08:33,262 INFO L226 Difference]: Without dead ends: 331 [2019-10-13 23:08:33,264 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 23:08:33,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 331 states. [2019-10-13 23:08:33,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 331 to 330. [2019-10-13 23:08:33,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 330 states. [2019-10-13 23:08:33,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 330 states and 408 transitions. [2019-10-13 23:08:33,284 INFO L78 Accepts]: Start accepts. Automaton has 330 states and 408 transitions. Word has length 147 [2019-10-13 23:08:33,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:08:33,285 INFO L462 AbstractCegarLoop]: Abstraction has 330 states and 408 transitions. [2019-10-13 23:08:33,285 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:08:33,285 INFO L276 IsEmpty]: Start isEmpty. Operand 330 states and 408 transitions. [2019-10-13 23:08:33,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2019-10-13 23:08:33,288 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:08:33,289 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 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] [2019-10-13 23:08:33,289 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:08:33,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:08:33,289 INFO L82 PathProgramCache]: Analyzing trace with hash 1504008346, now seen corresponding path program 1 times [2019-10-13 23:08:33,290 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:08:33,290 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720280615] [2019-10-13 23:08:33,290 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:08:33,290 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:08:33,290 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:08:33,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:08:33,525 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-13 23:08:33,526 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [720280615] [2019-10-13 23:08:33,528 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:08:33,528 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-13 23:08:33,528 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855910509] [2019-10-13 23:08:33,529 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-13 23:08:33,530 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:08:33,530 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-13 23:08:33,530 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-13 23:08:33,531 INFO L87 Difference]: Start difference. First operand 330 states and 408 transitions. Second operand 8 states. [2019-10-13 23:08:33,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:08:33,622 INFO L93 Difference]: Finished difference Result 447 states and 537 transitions. [2019-10-13 23:08:33,622 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-13 23:08:33,622 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 148 [2019-10-13 23:08:33,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:08:33,632 INFO L225 Difference]: With dead ends: 447 [2019-10-13 23:08:33,633 INFO L226 Difference]: Without dead ends: 330 [2019-10-13 23:08:33,634 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-13 23:08:33,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 330 states. [2019-10-13 23:08:33,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 330 to 330. [2019-10-13 23:08:33,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 330 states. [2019-10-13 23:08:33,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 330 states and 407 transitions. [2019-10-13 23:08:33,684 INFO L78 Accepts]: Start accepts. Automaton has 330 states and 407 transitions. Word has length 148 [2019-10-13 23:08:33,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:08:33,685 INFO L462 AbstractCegarLoop]: Abstraction has 330 states and 407 transitions. [2019-10-13 23:08:33,685 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-13 23:08:33,686 INFO L276 IsEmpty]: Start isEmpty. Operand 330 states and 407 transitions. [2019-10-13 23:08:33,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2019-10-13 23:08:33,692 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:08:33,692 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 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] [2019-10-13 23:08:33,693 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:08:33,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:08:33,693 INFO L82 PathProgramCache]: Analyzing trace with hash 1349541926, now seen corresponding path program 1 times [2019-10-13 23:08:33,694 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:08:33,694 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1348623107] [2019-10-13 23:08:33,695 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:08:33,695 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:08:33,695 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:08:33,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:08:34,544 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-13 23:08:34,545 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1348623107] [2019-10-13 23:08:34,545 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:08:34,545 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2019-10-13 23:08:34,545 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573906982] [2019-10-13 23:08:34,546 INFO L442 AbstractCegarLoop]: Interpolant automaton has 25 states [2019-10-13 23:08:34,546 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:08:34,546 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2019-10-13 23:08:34,547 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=537, Unknown=0, NotChecked=0, Total=600 [2019-10-13 23:08:34,547 INFO L87 Difference]: Start difference. First operand 330 states and 407 transitions. Second operand 25 states. [2019-10-13 23:08:41,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:08:41,858 INFO L93 Difference]: Finished difference Result 615 states and 727 transitions. [2019-10-13 23:08:41,858 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2019-10-13 23:08:41,859 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 153 [2019-10-13 23:08:41,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:08:41,862 INFO L225 Difference]: With dead ends: 615 [2019-10-13 23:08:41,862 INFO L226 Difference]: Without dead ends: 474 [2019-10-13 23:08:41,864 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 355 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=235, Invalid=2215, Unknown=0, NotChecked=0, Total=2450 [2019-10-13 23:08:41,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 474 states. [2019-10-13 23:08:41,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 474 to 467. [2019-10-13 23:08:41,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 467 states. [2019-10-13 23:08:41,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 467 states to 467 states and 558 transitions. [2019-10-13 23:08:41,895 INFO L78 Accepts]: Start accepts. Automaton has 467 states and 558 transitions. Word has length 153 [2019-10-13 23:08:41,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:08:41,896 INFO L462 AbstractCegarLoop]: Abstraction has 467 states and 558 transitions. [2019-10-13 23:08:41,896 INFO L463 AbstractCegarLoop]: Interpolant automaton has 25 states. [2019-10-13 23:08:41,896 INFO L276 IsEmpty]: Start isEmpty. Operand 467 states and 558 transitions. [2019-10-13 23:08:41,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2019-10-13 23:08:41,899 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:08:41,899 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:08:41,900 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:08:41,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:08:41,900 INFO L82 PathProgramCache]: Analyzing trace with hash -1235438887, now seen corresponding path program 1 times [2019-10-13 23:08:41,900 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:08:41,900 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [752972445] [2019-10-13 23:08:41,901 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:08:41,901 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:08:41,901 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:08:41,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:08:42,382 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-10-13 23:08:42,383 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [752972445] [2019-10-13 23:08:42,384 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:08:42,384 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2019-10-13 23:08:42,384 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [53477721] [2019-10-13 23:08:42,385 INFO L442 AbstractCegarLoop]: Interpolant automaton has 21 states [2019-10-13 23:08:42,385 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:08:42,386 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2019-10-13 23:08:42,386 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=371, Unknown=0, NotChecked=0, Total=420 [2019-10-13 23:08:42,386 INFO L87 Difference]: Start difference. First operand 467 states and 558 transitions. Second operand 21 states. [2019-10-13 23:08:48,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:08:48,741 INFO L93 Difference]: Finished difference Result 883 states and 1006 transitions. [2019-10-13 23:08:48,741 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2019-10-13 23:08:48,741 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 174 [2019-10-13 23:08:48,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:08:48,746 INFO L225 Difference]: With dead ends: 883 [2019-10-13 23:08:48,746 INFO L226 Difference]: Without dead ends: 635 [2019-10-13 23:08:48,748 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 316 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=213, Invalid=1679, Unknown=0, NotChecked=0, Total=1892 [2019-10-13 23:08:48,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 635 states. [2019-10-13 23:08:48,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 635 to 618. [2019-10-13 23:08:48,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 618 states. [2019-10-13 23:08:48,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 618 states to 618 states and 722 transitions. [2019-10-13 23:08:48,785 INFO L78 Accepts]: Start accepts. Automaton has 618 states and 722 transitions. Word has length 174 [2019-10-13 23:08:48,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:08:48,786 INFO L462 AbstractCegarLoop]: Abstraction has 618 states and 722 transitions. [2019-10-13 23:08:48,786 INFO L463 AbstractCegarLoop]: Interpolant automaton has 21 states. [2019-10-13 23:08:48,786 INFO L276 IsEmpty]: Start isEmpty. Operand 618 states and 722 transitions. [2019-10-13 23:08:48,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2019-10-13 23:08:48,789 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:08:48,790 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:08:48,790 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:08:48,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:08:48,790 INFO L82 PathProgramCache]: Analyzing trace with hash -2061482255, now seen corresponding path program 1 times [2019-10-13 23:08:48,791 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:08:48,791 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [107988018] [2019-10-13 23:08:48,791 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:08:48,791 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:08:48,791 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:08:48,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:08:49,887 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2019-10-13 23:08:49,888 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [107988018] [2019-10-13 23:08:49,888 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1748487733] [2019-10-13 23:08:49,888 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 23:08:50,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:08:50,446 INFO L256 TraceCheckSpWp]: Trace formula consists of 2419 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-13 23:08:50,464 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 23:08:50,614 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-13 23:08:50,614 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 23:08:50,906 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-13 23:08:50,907 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [87194922] [2019-10-13 23:08:50,936 INFO L162 IcfgInterpreter]: Started Sifa with 165 locations of interest [2019-10-13 23:08:50,936 INFO L169 IcfgInterpreter]: Building call graph [2019-10-13 23:08:50,943 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-13 23:08:50,951 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-13 23:08:50,952 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs