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 0.1.24-36ac518-m [2019-10-07 14:47:28,542 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-07 14:47:28,547 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-07 14:47:28,559 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-07 14:47:28,560 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-07 14:47:28,561 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-07 14:47:28,562 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-07 14:47:28,564 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-07 14:47:28,566 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-07 14:47:28,567 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-07 14:47:28,568 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-07 14:47:28,569 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-07 14:47:28,569 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-07 14:47:28,570 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-07 14:47:28,571 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-07 14:47:28,574 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-07 14:47:28,575 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-07 14:47:28,576 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-07 14:47:28,579 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-07 14:47:28,581 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-07 14:47:28,585 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-07 14:47:28,586 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-07 14:47:28,587 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-07 14:47:28,588 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-07 14:47:28,590 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-07 14:47:28,591 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-07 14:47:28,591 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-07 14:47:28,592 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-07 14:47:28,592 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-07 14:47:28,593 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-07 14:47:28,593 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-07 14:47:28,594 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-07 14:47:28,595 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-07 14:47:28,595 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-07 14:47:28,596 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-07 14:47:28,597 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-07 14:47:28,597 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-07 14:47:28,598 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-07 14:47:28,598 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-07 14:47:28,599 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-07 14:47:28,599 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-07 14:47:28,600 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 [2019-10-07 14:47:28,616 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-07 14:47:28,616 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-07 14:47:28,618 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-07 14:47:28,618 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-07 14:47:28,618 INFO L138 SettingsManager]: * Use SBE=true [2019-10-07 14:47:28,619 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-07 14:47:28,619 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-07 14:47:28,619 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-07 14:47:28,619 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-07 14:47:28,620 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-07 14:47:28,620 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-07 14:47:28,621 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-07 14:47:28,621 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-07 14:47:28,621 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-07 14:47:28,622 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-07 14:47:28,622 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-07 14:47:28,622 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-07 14:47:28,622 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-07 14:47:28,622 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-07 14:47:28,623 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-07 14:47:28,623 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-07 14:47:28,624 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 14:47:28,624 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-07 14:47:28,624 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-07 14:47:28,624 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-07 14:47:28,624 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-07 14:47:28,625 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-07 14:47:28,625 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-07 14:47:28,625 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 [2019-10-07 14:47:28,921 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-07 14:47:28,939 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-07 14:47:28,943 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-07 14:47:28,944 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-07 14:47:28,945 INFO L275 PluginConnector]: CDTParser initialized [2019-10-07 14:47:28,945 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec27_product13.cil.c [2019-10-07 14:47:29,020 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1892b26bd/afc26f067db441939bbfcb4560c92dd3/FLAG9abfbe1d2 [2019-10-07 14:47:29,683 INFO L306 CDTParser]: Found 1 translation units. [2019-10-07 14:47:29,684 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec27_product13.cil.c [2019-10-07 14:47:29,714 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1892b26bd/afc26f067db441939bbfcb4560c92dd3/FLAG9abfbe1d2 [2019-10-07 14:47:29,876 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1892b26bd/afc26f067db441939bbfcb4560c92dd3 [2019-10-07 14:47:29,887 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-07 14:47:29,888 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-07 14:47:29,889 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-07 14:47:29,890 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-07 14:47:29,894 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-07 14:47:29,895 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 02:47:29" (1/1) ... [2019-10-07 14:47:29,897 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@297c3183 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:47:29, skipping insertion in model container [2019-10-07 14:47:29,898 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 02:47:29" (1/1) ... [2019-10-07 14:47:29,904 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-07 14:47:29,976 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-07 14:47:30,634 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 14:47:30,652 INFO L188 MainTranslator]: Completed pre-run [2019-10-07 14:47:30,843 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 14:47:30,931 INFO L192 MainTranslator]: Completed translation [2019-10-07 14:47:30,932 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:47:30 WrapperNode [2019-10-07 14:47:30,933 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-07 14:47:30,933 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-07 14:47:30,933 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-07 14:47:30,934 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-07 14:47:30,945 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:47:30" (1/1) ... [2019-10-07 14:47:30,946 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:47:30" (1/1) ... [2019-10-07 14:47:30,980 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:47:30" (1/1) ... [2019-10-07 14:47:30,980 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:47:30" (1/1) ... [2019-10-07 14:47:31,050 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:47:30" (1/1) ... [2019-10-07 14:47:31,077 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:47:30" (1/1) ... [2019-10-07 14:47:31,094 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:47:30" (1/1) ... [2019-10-07 14:47:31,124 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-07 14:47:31,125 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-07 14:47:31,125 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-07 14:47:31,125 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-07 14:47:31,130 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:47:30" (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 [2019-10-07 14:47:31,206 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-07 14:47:31,207 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-07 14:47:31,207 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-07 14:47:31,207 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-07 14:47:31,207 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-07 14:47:31,209 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-07 14:47:31,209 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-07 14:47:31,209 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-07 14:47:31,210 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-07 14:47:31,210 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-07 14:47:31,210 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-07 14:47:31,210 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-07 14:47:31,210 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-07 14:47:31,211 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-07 14:47:31,211 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-07 14:47:31,211 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Sign [2019-10-07 14:47:31,211 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-07 14:47:31,211 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-07 14:47:31,212 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-07 14:47:31,212 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-07 14:47:31,212 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-07 14:47:31,212 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-07 14:47:31,213 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-07 14:47:31,213 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-07 14:47:31,213 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-10-07 14:47:31,213 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-07 14:47:31,214 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-07 14:47:31,214 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-07 14:47:31,214 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-07 14:47:31,214 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-07 14:47:31,214 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-07 14:47:31,214 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-07 14:47:31,215 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-07 14:47:31,215 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-07 14:47:31,215 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-07 14:47:31,215 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-07 14:47:31,215 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-07 14:47:31,216 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-07 14:47:31,216 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-07 14:47:31,216 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-07 14:47:31,216 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-07 14:47:31,216 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-07 14:47:31,216 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-07 14:47:31,217 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-07 14:47:31,217 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-07 14:47:31,217 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-07 14:47:31,217 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-07 14:47:31,217 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-07 14:47:31,218 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-07 14:47:31,218 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-07 14:47:31,218 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-07 14:47:31,218 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-07 14:47:31,218 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-07 14:47:31,218 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-07 14:47:31,219 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-07 14:47:31,219 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-07 14:47:31,219 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-07 14:47:31,219 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-07 14:47:31,219 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-07 14:47:31,220 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-07 14:47:31,220 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-07 14:47:31,220 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-07 14:47:31,220 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-07 14:47:31,220 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-07 14:47:31,221 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-07 14:47:31,221 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-07 14:47:31,221 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-07 14:47:31,221 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-07 14:47:31,221 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-07 14:47:31,221 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-07 14:47:31,222 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-07 14:47:31,222 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-07 14:47:31,222 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-07 14:47:31,222 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-07 14:47:31,222 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-07 14:47:31,223 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-07 14:47:31,223 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-07 14:47:31,223 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-07 14:47:31,223 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-07 14:47:31,223 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-07 14:47:31,223 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-07 14:47:31,224 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-07 14:47:31,224 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-07 14:47:31,224 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-07 14:47:31,224 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__VerifyForward_spec__1 [2019-10-07 14:47:31,224 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-07 14:47:31,225 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-07 14:47:31,225 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-07 14:47:31,225 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-07 14:47:31,225 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-07 14:47:31,225 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-07 14:47:31,226 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-07 14:47:31,226 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-07 14:47:31,226 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-07 14:47:31,226 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-07 14:47:31,226 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-07 14:47:31,227 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-07 14:47:31,227 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-07 14:47:31,227 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-07 14:47:31,227 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-07 14:47:31,227 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-07 14:47:31,227 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-07 14:47:31,228 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-07 14:47:31,228 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-07 14:47:31,228 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-07 14:47:31,228 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-07 14:47:31,228 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-07 14:47:31,229 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-07 14:47:31,229 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-07 14:47:31,229 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-07 14:47:31,229 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-07 14:47:31,229 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-07 14:47:31,230 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-07 14:47:31,230 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-07 14:47:31,230 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-07 14:47:31,230 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-07 14:47:31,230 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-07 14:47:31,230 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-07 14:47:31,231 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-07 14:47:31,231 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-07 14:47:31,231 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-07 14:47:31,231 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-07 14:47:31,231 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-07 14:47:31,231 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-07 14:47:31,232 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-07 14:47:31,232 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-07 14:47:31,232 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-07 14:47:31,232 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-07 14:47:31,232 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-07 14:47:31,233 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-07 14:47:31,233 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-07 14:47:31,233 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-07 14:47:31,233 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-07 14:47:31,233 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-07 14:47:31,234 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-07 14:47:31,234 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-07 14:47:31,234 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-07 14:47:31,234 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-07 14:47:31,234 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-07 14:47:31,235 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-07 14:47:31,235 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-07 14:47:31,235 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-07 14:47:31,235 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-07 14:47:31,235 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-07 14:47:31,235 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-07 14:47:31,236 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-07 14:47:31,236 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Sign [2019-10-07 14:47:31,236 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-07 14:47:31,236 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-07 14:47:31,236 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-07 14:47:31,236 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-07 14:47:31,237 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-07 14:47:31,237 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-07 14:47:31,237 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-07 14:47:31,237 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-07 14:47:31,237 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-07 14:47:31,238 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-07 14:47:31,238 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-07 14:47:31,238 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-07 14:47:31,238 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-07 14:47:31,238 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-07 14:47:31,238 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-07 14:47:31,239 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-07 14:47:31,239 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-07 14:47:31,239 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-07 14:47:31,239 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-07 14:47:31,239 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-07 14:47:31,239 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-07 14:47:31,240 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-07 14:47:31,240 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-07 14:47:31,240 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-07 14:47:31,240 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__VerifyForward_spec__1 [2019-10-07 14:47:31,240 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-10-07 14:47:31,240 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-07 14:47:31,240 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-07 14:47:31,241 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-07 14:47:31,241 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-07 14:47:31,241 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-07 14:47:31,241 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-07 14:47:31,241 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-07 14:47:31,241 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-07 14:47:31,241 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-07 14:47:31,241 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-07 14:47:31,241 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-07 14:47:31,242 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-07 14:47:31,242 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-07 14:47:31,242 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-07 14:47:31,242 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-07 14:47:31,242 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-07 14:47:31,242 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-07 14:47:31,242 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-07 14:47:31,243 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-07 14:47:31,243 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-07 14:47:31,243 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-07 14:47:31,243 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-07 14:47:31,243 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-07 14:47:31,243 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-07 14:47:31,243 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-07 14:47:31,244 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-07 14:47:31,244 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-07 14:47:31,244 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-07 14:47:31,244 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-07 14:47:31,244 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-07 14:47:31,244 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-07 14:47:31,244 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-07 14:47:31,245 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-07 14:47:31,245 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-07 14:47:31,245 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-07 14:47:31,245 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-07 14:47:31,245 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-07 14:47:31,245 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-07 14:47:31,245 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-07 14:47:31,246 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-07 14:47:31,246 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-07 14:47:31,246 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-07 14:47:31,246 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-07 14:47:31,246 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-07 14:47:31,246 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-07 14:47:31,246 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-07 14:47:31,247 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-07 14:47:31,247 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-07 14:47:31,247 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-07 14:47:31,247 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-07 14:47:31,247 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-07 14:47:31,247 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-07 14:47:31,247 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-07 14:47:31,248 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-07 14:47:31,248 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-07 14:47:31,248 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-07 14:47:31,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-07 14:47:31,248 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-07 14:47:36,103 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-07 14:47:36,104 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-07 14:47:36,105 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 02:47:36 BoogieIcfgContainer [2019-10-07 14:47:36,106 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-07 14:47:36,107 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-07 14:47:36,107 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-07 14:47:36,110 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-07 14:47:36,111 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.10 02:47:29" (1/3) ... [2019-10-07 14:47:36,112 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@265434f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 02:47:36, skipping insertion in model container [2019-10-07 14:47:36,112 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:47:30" (2/3) ... [2019-10-07 14:47:36,112 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@265434f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 02:47:36, skipping insertion in model container [2019-10-07 14:47:36,112 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 02:47:36" (3/3) ... [2019-10-07 14:47:36,115 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec27_product13.cil.c [2019-10-07 14:47:36,129 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-07 14:47:36,142 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-07 14:47:36,157 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-07 14:47:36,202 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-07 14:47:36,202 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-07 14:47:36,202 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-07 14:47:36,203 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-07 14:47:36,203 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-07 14:47:36,203 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-07 14:47:36,203 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-07 14:47:36,203 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-07 14:47:36,235 INFO L276 IsEmpty]: Start isEmpty. Operand 326 states. [2019-10-07 14:47:36,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2019-10-07 14:47:36,267 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:47:36,268 INFO L385 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] [2019-10-07 14:47:36,271 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:47:36,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:47:36,278 INFO L82 PathProgramCache]: Analyzing trace with hash -1038077492, now seen corresponding path program 1 times [2019-10-07 14:47:36,289 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:47:36,289 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:47:36,290 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:47:36,290 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:47:36,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:47:36,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:47:36,982 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-07 14:47:36,983 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:47:36,983 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:47:36,984 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-07 14:47:36,999 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-07 14:47:37,014 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-07 14:47:37,015 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-07 14:47:37,018 INFO L87 Difference]: Start difference. First operand 326 states. Second operand 2 states. [2019-10-07 14:47:37,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:47:37,112 INFO L93 Difference]: Finished difference Result 439 states and 515 transitions. [2019-10-07 14:47:37,112 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-07 14:47:37,113 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 141 [2019-10-07 14:47:37,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:47:37,141 INFO L225 Difference]: With dead ends: 439 [2019-10-07 14:47:37,141 INFO L226 Difference]: Without dead ends: 291 [2019-10-07 14:47:37,149 INFO L606 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 [2019-10-07 14:47:37,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291 states. [2019-10-07 14:47:37,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291 to 291. [2019-10-07 14:47:37,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 291 states. [2019-10-07 14:47:37,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 291 states to 291 states and 341 transitions. [2019-10-07 14:47:37,242 INFO L78 Accepts]: Start accepts. Automaton has 291 states and 341 transitions. Word has length 141 [2019-10-07 14:47:37,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:47:37,244 INFO L462 AbstractCegarLoop]: Abstraction has 291 states and 341 transitions. [2019-10-07 14:47:37,245 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-07 14:47:37,245 INFO L276 IsEmpty]: Start isEmpty. Operand 291 states and 341 transitions. [2019-10-07 14:47:37,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2019-10-07 14:47:37,249 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:47:37,250 INFO L385 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] [2019-10-07 14:47:37,250 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:47:37,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:47:37,251 INFO L82 PathProgramCache]: Analyzing trace with hash 1582578031, now seen corresponding path program 1 times [2019-10-07 14:47:37,251 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:47:37,251 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:47:37,251 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:47:37,251 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:47:37,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:47:37,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:47:37,472 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-07 14:47:37,473 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:47:37,473 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:47:37,474 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 14:47:37,482 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 14:47:37,482 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 14:47:37,483 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 14:47:37,483 INFO L87 Difference]: Start difference. First operand 291 states and 341 transitions. Second operand 3 states. [2019-10-07 14:47:37,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:47:37,530 INFO L93 Difference]: Finished difference Result 424 states and 484 transitions. [2019-10-07 14:47:37,531 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 14:47:37,531 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 142 [2019-10-07 14:47:37,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:47:37,534 INFO L225 Difference]: With dead ends: 424 [2019-10-07 14:47:37,535 INFO L226 Difference]: Without dead ends: 293 [2019-10-07 14:47:37,537 INFO L606 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 [2019-10-07 14:47:37,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2019-10-07 14:47:37,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 293. [2019-10-07 14:47:37,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 293 states. [2019-10-07 14:47:37,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 293 states and 343 transitions. [2019-10-07 14:47:37,562 INFO L78 Accepts]: Start accepts. Automaton has 293 states and 343 transitions. Word has length 142 [2019-10-07 14:47:37,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:47:37,563 INFO L462 AbstractCegarLoop]: Abstraction has 293 states and 343 transitions. [2019-10-07 14:47:37,563 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 14:47:37,563 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states and 343 transitions. [2019-10-07 14:47:37,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2019-10-07 14:47:37,566 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:47:37,566 INFO L385 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] [2019-10-07 14:47:37,567 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:47:37,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:47:37,567 INFO L82 PathProgramCache]: Analyzing trace with hash 1096482442, now seen corresponding path program 1 times [2019-10-07 14:47:37,567 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:47:37,567 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:47:37,567 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:47:37,568 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:47:37,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:47:37,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:47:37,822 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-07 14:47:37,822 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:47:37,822 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:47:37,823 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 14:47:37,824 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 14:47:37,825 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 14:47:37,825 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 14:47:37,825 INFO L87 Difference]: Start difference. First operand 293 states and 343 transitions. Second operand 3 states. [2019-10-07 14:47:37,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:47:37,877 INFO L93 Difference]: Finished difference Result 566 states and 690 transitions. [2019-10-07 14:47:37,879 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 14:47:37,879 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 147 [2019-10-07 14:47:37,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:47:37,884 INFO L225 Difference]: With dead ends: 566 [2019-10-07 14:47:37,884 INFO L226 Difference]: Without dead ends: 331 [2019-10-07 14:47:37,888 INFO L606 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 [2019-10-07 14:47:37,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 331 states. [2019-10-07 14:47:37,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 331 to 330. [2019-10-07 14:47:37,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 330 states. [2019-10-07 14:47:37,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 330 states and 408 transitions. [2019-10-07 14:47:37,937 INFO L78 Accepts]: Start accepts. Automaton has 330 states and 408 transitions. Word has length 147 [2019-10-07 14:47:37,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:47:37,940 INFO L462 AbstractCegarLoop]: Abstraction has 330 states and 408 transitions. [2019-10-07 14:47:37,940 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 14:47:37,940 INFO L276 IsEmpty]: Start isEmpty. Operand 330 states and 408 transitions. [2019-10-07 14:47:37,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2019-10-07 14:47:37,946 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:47:37,947 INFO L385 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] [2019-10-07 14:47:37,947 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:47:37,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:47:37,948 INFO L82 PathProgramCache]: Analyzing trace with hash 1504008346, now seen corresponding path program 1 times [2019-10-07 14:47:37,948 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:47:37,948 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:47:37,948 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:47:37,949 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:47:37,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:47:38,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:47:38,284 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-07 14:47:38,284 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:47:38,285 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:47:38,285 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-07 14:47:38,286 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-07 14:47:38,286 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-07 14:47:38,287 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-07 14:47:38,287 INFO L87 Difference]: Start difference. First operand 330 states and 408 transitions. Second operand 8 states. [2019-10-07 14:47:38,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:47:38,360 INFO L93 Difference]: Finished difference Result 447 states and 537 transitions. [2019-10-07 14:47:38,366 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-07 14:47:38,366 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 148 [2019-10-07 14:47:38,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:47:38,376 INFO L225 Difference]: With dead ends: 447 [2019-10-07 14:47:38,376 INFO L226 Difference]: Without dead ends: 330 [2019-10-07 14:47:38,378 INFO L606 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 [2019-10-07 14:47:38,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 330 states. [2019-10-07 14:47:38,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 330 to 330. [2019-10-07 14:47:38,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 330 states. [2019-10-07 14:47:38,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 330 states and 407 transitions. [2019-10-07 14:47:38,420 INFO L78 Accepts]: Start accepts. Automaton has 330 states and 407 transitions. Word has length 148 [2019-10-07 14:47:38,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:47:38,424 INFO L462 AbstractCegarLoop]: Abstraction has 330 states and 407 transitions. [2019-10-07 14:47:38,425 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-07 14:47:38,425 INFO L276 IsEmpty]: Start isEmpty. Operand 330 states and 407 transitions. [2019-10-07 14:47:38,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2019-10-07 14:47:38,432 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:47:38,433 INFO L385 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] [2019-10-07 14:47:38,433 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:47:38,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:47:38,434 INFO L82 PathProgramCache]: Analyzing trace with hash 1349541926, now seen corresponding path program 1 times [2019-10-07 14:47:38,434 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:47:38,434 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:47:38,435 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:47:38,435 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:47:38,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:47:38,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:47:39,276 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-07 14:47:39,276 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:47:39,277 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:47:39,277 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2019-10-07 14:47:39,278 INFO L442 AbstractCegarLoop]: Interpolant automaton has 25 states [2019-10-07 14:47:39,278 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2019-10-07 14:47:39,280 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=537, Unknown=0, NotChecked=0, Total=600 [2019-10-07 14:47:39,280 INFO L87 Difference]: Start difference. First operand 330 states and 407 transitions. Second operand 25 states. [2019-10-07 14:47:46,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:47:46,896 INFO L93 Difference]: Finished difference Result 615 states and 727 transitions. [2019-10-07 14:47:46,896 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2019-10-07 14:47:46,896 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 153 [2019-10-07 14:47:46,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:47:46,901 INFO L225 Difference]: With dead ends: 615 [2019-10-07 14:47:46,901 INFO L226 Difference]: Without dead ends: 474 [2019-10-07 14:47:46,903 INFO L606 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 [2019-10-07 14:47:46,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 474 states. [2019-10-07 14:47:46,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 474 to 467. [2019-10-07 14:47:46,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 467 states. [2019-10-07 14:47:46,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 467 states to 467 states and 558 transitions. [2019-10-07 14:47:46,932 INFO L78 Accepts]: Start accepts. Automaton has 467 states and 558 transitions. Word has length 153 [2019-10-07 14:47:46,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:47:46,933 INFO L462 AbstractCegarLoop]: Abstraction has 467 states and 558 transitions. [2019-10-07 14:47:46,933 INFO L463 AbstractCegarLoop]: Interpolant automaton has 25 states. [2019-10-07 14:47:46,933 INFO L276 IsEmpty]: Start isEmpty. Operand 467 states and 558 transitions. [2019-10-07 14:47:46,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2019-10-07 14:47:46,936 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:47:46,937 INFO L385 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] [2019-10-07 14:47:46,937 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:47:46,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:47:46,937 INFO L82 PathProgramCache]: Analyzing trace with hash -1235438887, now seen corresponding path program 1 times [2019-10-07 14:47:46,938 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:47:46,938 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:47:46,938 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:47:46,938 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:47:46,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:47:46,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:47:47,417 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-10-07 14:47:47,418 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:47:47,418 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:47:47,419 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2019-10-07 14:47:47,419 INFO L442 AbstractCegarLoop]: Interpolant automaton has 21 states [2019-10-07 14:47:47,420 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2019-10-07 14:47:47,421 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=371, Unknown=0, NotChecked=0, Total=420 [2019-10-07 14:47:47,421 INFO L87 Difference]: Start difference. First operand 467 states and 558 transitions. Second operand 21 states. [2019-10-07 14:47:53,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:47:53,816 INFO L93 Difference]: Finished difference Result 883 states and 1006 transitions. [2019-10-07 14:47:53,816 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2019-10-07 14:47:53,816 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 174 [2019-10-07 14:47:53,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:47:53,825 INFO L225 Difference]: With dead ends: 883 [2019-10-07 14:47:53,826 INFO L226 Difference]: Without dead ends: 635 [2019-10-07 14:47:53,828 INFO L606 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 [2019-10-07 14:47:53,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 635 states. [2019-10-07 14:47:53,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 635 to 618. [2019-10-07 14:47:53,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 618 states. [2019-10-07 14:47:53,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 618 states to 618 states and 722 transitions. [2019-10-07 14:47:53,875 INFO L78 Accepts]: Start accepts. Automaton has 618 states and 722 transitions. Word has length 174 [2019-10-07 14:47:53,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:47:53,876 INFO L462 AbstractCegarLoop]: Abstraction has 618 states and 722 transitions. [2019-10-07 14:47:53,876 INFO L463 AbstractCegarLoop]: Interpolant automaton has 21 states. [2019-10-07 14:47:53,876 INFO L276 IsEmpty]: Start isEmpty. Operand 618 states and 722 transitions. [2019-10-07 14:47:53,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2019-10-07 14:47:53,879 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:47:53,879 INFO L385 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] [2019-10-07 14:47:53,880 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:47:53,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:47:53,880 INFO L82 PathProgramCache]: Analyzing trace with hash -2061482255, now seen corresponding path program 1 times [2019-10-07 14:47:53,881 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:47:53,881 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:47:53,881 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:47:53,881 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:47:53,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:47:53,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:47:54,953 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2019-10-07 14:47:54,953 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:47:54,954 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:47:54,954 INFO L95 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 [2019-10-07 14:47:55,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:47:55,461 INFO L256 TraceCheckSpWp]: Trace formula consists of 2419 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-07 14:47:55,479 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:47:55,600 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-07 14:47:55,600 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:47:55,915 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-07 14:47:55,916 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2019-10-07 14:47:55,949 INFO L162 IcfgInterpreter]: Started Sifa with 165 locations of interest [2019-10-07 14:47:55,949 INFO L169 IcfgInterpreter]: Building call graph [2019-10-07 14:47:55,960 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-07 14:47:55,974 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-07 14:47:55,975 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-07 14:48:29,028 WARN L191 SmtUtils]: Spent 342.00 ms on a formula simplification that was a NOOP. DAG size: 641 [2019-10-07 14:48:32,452 WARN L191 SmtUtils]: Spent 1.08 s on a formula simplification. DAG size of input: 269 DAG size of output: 219 [2019-10-07 14:48:32,810 WARN L191 SmtUtils]: Spent 351.00 ms on a formula simplification that was a NOOP. DAG size: 674 [2019-10-07 14:48:33,249 WARN L191 SmtUtils]: Spent 434.00 ms on a formula simplification that was a NOOP. DAG size: 674 [2019-10-07 14:48:33,553 WARN L191 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 674 [2019-10-07 14:48:33,822 WARN L191 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 435 [2019-10-07 14:48:34,564 WARN L191 SmtUtils]: Spent 739.00 ms on a formula simplification that was a NOOP. DAG size: 962 [2019-10-07 14:48:35,221 WARN L191 SmtUtils]: Spent 637.00 ms on a formula simplification that was a NOOP. DAG size: 962 [2019-10-07 14:48:35,834 WARN L191 SmtUtils]: Spent 609.00 ms on a formula simplification that was a NOOP. DAG size: 962 [2019-10-07 14:48:36,024 WARN L191 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 435 [2019-10-07 14:48:36,616 WARN L191 SmtUtils]: Spent 590.00 ms on a formula simplification that was a NOOP. DAG size: 962 [2019-10-07 14:48:37,785 WARN L191 SmtUtils]: Spent 1.14 s on a formula simplification. DAG size of input: 964 DAG size of output: 962 [2019-10-07 14:48:38,380 WARN L191 SmtUtils]: Spent 591.00 ms on a formula simplification that was a NOOP. DAG size: 962 [2019-10-07 14:48:38,513 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 435 [2019-10-07 14:48:39,113 WARN L191 SmtUtils]: Spent 598.00 ms on a formula simplification that was a NOOP. DAG size: 962 [2019-10-07 14:48:39,665 WARN L191 SmtUtils]: Spent 549.00 ms on a formula simplification that was a NOOP. DAG size: 962 [2019-10-07 14:48:40,248 WARN L191 SmtUtils]: Spent 579.00 ms on a formula simplification that was a NOOP. DAG size: 962 [2019-10-07 14:48:40,364 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 435 [2019-10-07 14:48:40,924 WARN L191 SmtUtils]: Spent 558.00 ms on a formula simplification that was a NOOP. DAG size: 962 [2019-10-07 14:48:40,946 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 535 for LOIs [2019-10-07 14:48:41,306 WARN L191 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 611 [2019-10-07 14:48:41,442 WARN L191 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 611 [2019-10-07 14:48:41,564 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 435 [2019-10-07 14:48:41,988 WARN L191 SmtUtils]: Spent 422.00 ms on a formula simplification that was a NOOP. DAG size: 899 [2019-10-07 14:48:41,989 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 992 for LOIs [2019-10-07 14:48:42,528 WARN L191 SmtUtils]: Spent 537.00 ms on a formula simplification that was a NOOP. DAG size: 992 [2019-10-07 14:48:43,091 WARN L191 SmtUtils]: Spent 560.00 ms on a formula simplification that was a NOOP. DAG size: 992 [2019-10-07 14:48:43,273 WARN L191 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 537 [2019-10-07 14:48:44,061 WARN L191 SmtUtils]: Spent 785.00 ms on a formula simplification that was a NOOP. DAG size: 1098 [2019-10-07 14:48:44,650 WARN L191 SmtUtils]: Spent 570.00 ms on a formula simplification that was a NOOP. DAG size: 998 [2019-10-07 14:48:45,202 WARN L191 SmtUtils]: Spent 548.00 ms on a formula simplification that was a NOOP. DAG size: 998 [2019-10-07 14:48:45,407 WARN L191 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 543 [2019-10-07 14:48:46,171 WARN L191 SmtUtils]: Spent 762.00 ms on a formula simplification that was a NOOP. DAG size: 1104 [2019-10-07 14:48:46,897 WARN L191 SmtUtils]: Spent 696.00 ms on a formula simplification that was a NOOP. DAG size: 998 [2019-10-07 14:48:47,489 WARN L191 SmtUtils]: Spent 588.00 ms on a formula simplification that was a NOOP. DAG size: 998 [2019-10-07 14:48:47,733 WARN L191 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 543 [2019-10-07 14:48:48,488 WARN L191 SmtUtils]: Spent 752.00 ms on a formula simplification that was a NOOP. DAG size: 1104 [2019-10-07 14:48:49,533 WARN L191 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 1106 DAG size of output: 998 [2019-10-07 14:48:50,084 WARN L191 SmtUtils]: Spent 547.00 ms on a formula simplification that was a NOOP. DAG size: 998 [2019-10-07 14:48:50,457 WARN L191 SmtUtils]: Spent 357.00 ms on a formula simplification that was a NOOP. DAG size: 543 [2019-10-07 14:48:51,342 WARN L191 SmtUtils]: Spent 881.00 ms on a formula simplification that was a NOOP. DAG size: 1104 [2019-10-07 14:48:51,911 WARN L191 SmtUtils]: Spent 554.00 ms on a formula simplification that was a NOOP. DAG size: 998 [2019-10-07 14:48:52,485 WARN L191 SmtUtils]: Spent 571.00 ms on a formula simplification that was a NOOP. DAG size: 998 [2019-10-07 14:48:52,667 WARN L191 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 543 [2019-10-07 14:48:53,440 WARN L191 SmtUtils]: Spent 771.00 ms on a formula simplification that was a NOOP. DAG size: 1104 [2019-10-07 14:48:54,002 WARN L191 SmtUtils]: Spent 560.00 ms on a formula simplification that was a NOOP. DAG size: 998 [2019-10-07 14:48:54,554 WARN L191 SmtUtils]: Spent 548.00 ms on a formula simplification that was a NOOP. DAG size: 998 [2019-10-07 14:48:54,735 WARN L191 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 543 [2019-10-07 14:48:55,493 WARN L191 SmtUtils]: Spent 755.00 ms on a formula simplification that was a NOOP. DAG size: 1104 [2019-10-07 14:48:56,045 WARN L191 SmtUtils]: Spent 549.00 ms on a formula simplification that was a NOOP. DAG size: 998 [2019-10-07 14:48:56,607 WARN L191 SmtUtils]: Spent 558.00 ms on a formula simplification that was a NOOP. DAG size: 998 [2019-10-07 14:48:56,792 WARN L191 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 543 [2019-10-07 14:48:57,560 WARN L191 SmtUtils]: Spent 765.00 ms on a formula simplification that was a NOOP. DAG size: 1104 [2019-10-07 14:48:58,115 WARN L191 SmtUtils]: Spent 552.00 ms on a formula simplification that was a NOOP. DAG size: 998 [2019-10-07 14:48:58,656 WARN L191 SmtUtils]: Spent 538.00 ms on a formula simplification that was a NOOP. DAG size: 998 [2019-10-07 14:48:58,833 WARN L191 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 543 [2019-10-07 14:48:59,589 WARN L191 SmtUtils]: Spent 753.00 ms on a formula simplification that was a NOOP. DAG size: 1104 [2019-10-07 14:49:00,141 WARN L191 SmtUtils]: Spent 550.00 ms on a formula simplification that was a NOOP. DAG size: 998 [2019-10-07 14:49:00,682 WARN L191 SmtUtils]: Spent 537.00 ms on a formula simplification that was a NOOP. DAG size: 998 [2019-10-07 14:49:00,879 WARN L191 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 543 [2019-10-07 14:49:01,654 WARN L191 SmtUtils]: Spent 772.00 ms on a formula simplification that was a NOOP. DAG size: 1104 [2019-10-07 14:49:02,213 WARN L191 SmtUtils]: Spent 557.00 ms on a formula simplification that was a NOOP. DAG size: 998 [2019-10-07 14:49:02,756 WARN L191 SmtUtils]: Spent 540.00 ms on a formula simplification that was a NOOP. DAG size: 998 [2019-10-07 14:49:02,944 WARN L191 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 543 [2019-10-07 14:49:03,710 WARN L191 SmtUtils]: Spent 764.00 ms on a formula simplification that was a NOOP. DAG size: 1104 [2019-10-07 14:49:04,250 WARN L191 SmtUtils]: Spent 537.00 ms on a formula simplification that was a NOOP. DAG size: 998 [2019-10-07 14:49:04,808 WARN L191 SmtUtils]: Spent 555.00 ms on a formula simplification that was a NOOP. DAG size: 998 [2019-10-07 14:49:04,987 WARN L191 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 543 [2019-10-07 14:49:05,740 WARN L191 SmtUtils]: Spent 751.00 ms on a formula simplification that was a NOOP. DAG size: 1104 [2019-10-07 14:49:06,284 WARN L191 SmtUtils]: Spent 541.00 ms on a formula simplification that was a NOOP. DAG size: 998 [2019-10-07 14:49:06,837 WARN L191 SmtUtils]: Spent 550.00 ms on a formula simplification that was a NOOP. DAG size: 998 [2019-10-07 14:49:07,023 WARN L191 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 543 [2019-10-07 14:49:07,770 WARN L191 SmtUtils]: Spent 745.00 ms on a formula simplification that was a NOOP. DAG size: 1104 [2019-10-07 14:49:08,316 WARN L191 SmtUtils]: Spent 543.00 ms on a formula simplification that was a NOOP. DAG size: 998 [2019-10-07 14:49:08,906 WARN L191 SmtUtils]: Spent 585.00 ms on a formula simplification that was a NOOP. DAG size: 998 [2019-10-07 14:49:09,085 WARN L191 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 543 [2019-10-07 14:49:09,830 WARN L191 SmtUtils]: Spent 742.00 ms on a formula simplification that was a NOOP. DAG size: 1104 [2019-10-07 14:49:10,643 WARN L191 SmtUtils]: Spent 768.00 ms on a formula simplification that was a NOOP. DAG size: 1104 [2019-10-07 14:49:11,388 WARN L191 SmtUtils]: Spent 741.00 ms on a formula simplification that was a NOOP. DAG size: 1104 [2019-10-07 14:49:11,579 WARN L191 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 543 [2019-10-07 14:49:12,343 WARN L191 SmtUtils]: Spent 761.00 ms on a formula simplification that was a NOOP. DAG size: 1104 [2019-10-07 14:49:13,704 WARN L191 SmtUtils]: Spent 1.35 s on a formula simplification. DAG size of input: 1106 DAG size of output: 1104 [2019-10-07 14:49:14,459 WARN L191 SmtUtils]: Spent 751.00 ms on a formula simplification that was a NOOP. DAG size: 1104 [2019-10-07 14:49:14,648 WARN L191 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 543 [2019-10-07 14:49:15,399 WARN L191 SmtUtils]: Spent 749.00 ms on a formula simplification that was a NOOP. DAG size: 1104 [2019-10-07 14:49:16,160 WARN L191 SmtUtils]: Spent 758.00 ms on a formula simplification that was a NOOP. DAG size: 1104 [2019-10-07 14:49:16,911 WARN L191 SmtUtils]: Spent 748.00 ms on a formula simplification that was a NOOP. DAG size: 1104 [2019-10-07 14:49:17,090 WARN L191 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 543 [2019-10-07 14:49:17,836 WARN L191 SmtUtils]: Spent 743.00 ms on a formula simplification that was a NOOP. DAG size: 1104 [2019-10-07 14:49:18,634 WARN L191 SmtUtils]: Spent 761.00 ms on a formula simplification that was a NOOP. DAG size: 1108 [2019-10-07 14:49:19,392 WARN L191 SmtUtils]: Spent 751.00 ms on a formula simplification that was a NOOP. DAG size: 1108 [2019-10-07 14:49:19,586 WARN L191 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-07 14:49:20,342 WARN L191 SmtUtils]: Spent 754.00 ms on a formula simplification that was a NOOP. DAG size: 1108 [2019-10-07 14:49:21,143 WARN L191 SmtUtils]: Spent 784.00 ms on a formula simplification that was a NOOP. DAG size: 1108 [2019-10-07 14:49:21,895 WARN L191 SmtUtils]: Spent 749.00 ms on a formula simplification that was a NOOP. DAG size: 1108 [2019-10-07 14:49:22,085 WARN L191 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-07 14:49:22,833 WARN L191 SmtUtils]: Spent 746.00 ms on a formula simplification that was a NOOP. DAG size: 1108 [2019-10-07 14:49:23,575 WARN L191 SmtUtils]: Spent 738.00 ms on a formula simplification that was a NOOP. DAG size: 1108 [2019-10-07 14:49:24,331 WARN L191 SmtUtils]: Spent 752.00 ms on a formula simplification that was a NOOP. DAG size: 1108 [2019-10-07 14:49:24,514 WARN L191 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-07 14:49:25,278 WARN L191 SmtUtils]: Spent 762.00 ms on a formula simplification that was a NOOP. DAG size: 1108 [2019-10-07 14:49:26,023 WARN L191 SmtUtils]: Spent 737.00 ms on a formula simplification that was a NOOP. DAG size: 1106 [2019-10-07 14:49:26,784 WARN L191 SmtUtils]: Spent 756.00 ms on a formula simplification that was a NOOP. DAG size: 1106 [2019-10-07 14:49:26,979 WARN L191 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-07 14:49:27,724 WARN L191 SmtUtils]: Spent 743.00 ms on a formula simplification that was a NOOP. DAG size: 1108 [2019-10-07 14:49:28,487 WARN L191 SmtUtils]: Spent 760.00 ms on a formula simplification that was a NOOP. DAG size: 1108 [2019-10-07 14:49:29,235 WARN L191 SmtUtils]: Spent 744.00 ms on a formula simplification that was a NOOP. DAG size: 1108 [2019-10-07 14:49:29,419 WARN L191 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-07 14:49:30,174 WARN L191 SmtUtils]: Spent 753.00 ms on a formula simplification that was a NOOP. DAG size: 1110 [2019-10-07 14:49:31,776 WARN L191 SmtUtils]: Spent 1.56 s on a formula simplification. DAG size of input: 1106 DAG size of output: 1104 [2019-10-07 14:49:32,521 WARN L191 SmtUtils]: Spent 742.00 ms on a formula simplification that was a NOOP. DAG size: 1104 [2019-10-07 14:49:32,709 WARN L191 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 543 [2019-10-07 14:49:33,448 WARN L191 SmtUtils]: Spent 737.00 ms on a formula simplification that was a NOOP. DAG size: 1104 [2019-10-07 14:49:34,833 WARN L191 SmtUtils]: Spent 1.37 s on a formula simplification. DAG size of input: 1106 DAG size of output: 1104 [2019-10-07 14:49:35,561 WARN L191 SmtUtils]: Spent 725.00 ms on a formula simplification that was a NOOP. DAG size: 1104 [2019-10-07 14:49:35,759 WARN L191 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 543 [2019-10-07 14:49:36,482 WARN L191 SmtUtils]: Spent 721.00 ms on a formula simplification that was a NOOP. DAG size: 1104 [2019-10-07 14:49:37,240 WARN L191 SmtUtils]: Spent 755.00 ms on a formula simplification that was a NOOP. DAG size: 1104 [2019-10-07 14:49:37,973 WARN L191 SmtUtils]: Spent 729.00 ms on a formula simplification that was a NOOP. DAG size: 1104 [2019-10-07 14:49:38,153 WARN L191 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 543 [2019-10-07 14:49:38,901 WARN L191 SmtUtils]: Spent 746.00 ms on a formula simplification that was a NOOP. DAG size: 1104 [2019-10-07 14:49:40,245 WARN L191 SmtUtils]: Spent 1.31 s on a formula simplification. DAG size of input: 1106 DAG size of output: 1104 [2019-10-07 14:49:40,988 WARN L191 SmtUtils]: Spent 740.00 ms on a formula simplification that was a NOOP. DAG size: 1104 [2019-10-07 14:49:41,174 WARN L191 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 543 [2019-10-07 14:49:41,906 WARN L191 SmtUtils]: Spent 729.00 ms on a formula simplification that was a NOOP. DAG size: 1104 [2019-10-07 14:49:43,566 WARN L191 SmtUtils]: Spent 1.65 s on a formula simplification. DAG size of input: 1106 DAG size of output: 1104 [2019-10-07 14:49:44,317 WARN L191 SmtUtils]: Spent 747.00 ms on a formula simplification that was a NOOP. DAG size: 1104 [2019-10-07 14:49:44,503 WARN L191 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 543 [2019-10-07 14:49:45,244 WARN L191 SmtUtils]: Spent 739.00 ms on a formula simplification that was a NOOP. DAG size: 1104 [2019-10-07 14:49:45,975 WARN L191 SmtUtils]: Spent 728.00 ms on a formula simplification that was a NOOP. DAG size: 1104 [2019-10-07 14:49:46,724 WARN L191 SmtUtils]: Spent 745.00 ms on a formula simplification that was a NOOP. DAG size: 1104 [2019-10-07 14:49:46,897 WARN L191 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 543 [2019-10-07 14:49:47,652 WARN L191 SmtUtils]: Spent 752.00 ms on a formula simplification that was a NOOP. DAG size: 1104 [2019-10-07 14:49:49,006 WARN L191 SmtUtils]: Spent 1.33 s on a formula simplification. DAG size of input: 1110 DAG size of output: 1108 [2019-10-07 14:49:49,745 WARN L191 SmtUtils]: Spent 735.00 ms on a formula simplification that was a NOOP. DAG size: 1108 [2019-10-07 14:49:49,927 WARN L191 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-07 14:49:50,659 WARN L191 SmtUtils]: Spent 731.00 ms on a formula simplification that was a NOOP. DAG size: 1108 [2019-10-07 14:49:52,013 WARN L191 SmtUtils]: Spent 1.34 s on a formula simplification. DAG size of input: 1110 DAG size of output: 1108 [2019-10-07 14:49:52,770 WARN L191 SmtUtils]: Spent 754.00 ms on a formula simplification that was a NOOP. DAG size: 1108 [2019-10-07 14:49:52,960 WARN L191 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-07 14:49:53,711 WARN L191 SmtUtils]: Spent 749.00 ms on a formula simplification that was a NOOP. DAG size: 1108 [2019-10-07 14:49:54,457 WARN L191 SmtUtils]: Spent 743.00 ms on a formula simplification that was a NOOP. DAG size: 1108 [2019-10-07 14:49:55,207 WARN L191 SmtUtils]: Spent 747.00 ms on a formula simplification that was a NOOP. DAG size: 1108 [2019-10-07 14:49:55,395 WARN L191 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-07 14:49:56,140 WARN L191 SmtUtils]: Spent 743.00 ms on a formula simplification that was a NOOP. DAG size: 1108 [2019-10-07 14:49:57,465 WARN L191 SmtUtils]: Spent 1.32 s on a formula simplification. DAG size of input: 1110 DAG size of output: 1106 [2019-10-07 14:49:58,201 WARN L191 SmtUtils]: Spent 732.00 ms on a formula simplification that was a NOOP. DAG size: 1106 [2019-10-07 14:49:58,392 WARN L191 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-07 14:49:59,132 WARN L191 SmtUtils]: Spent 739.00 ms on a formula simplification that was a NOOP. DAG size: 1108 [2019-10-07 14:50:00,364 WARN L191 SmtUtils]: Spent 1.23 s on a formula simplification. DAG size of input: 1112 DAG size of output: 1108 [2019-10-07 14:50:01,101 WARN L191 SmtUtils]: Spent 733.00 ms on a formula simplification that was a NOOP. DAG size: 1108 [2019-10-07 14:50:01,292 WARN L191 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-07 14:50:02,100 WARN L191 SmtUtils]: Spent 806.00 ms on a formula simplification that was a NOOP. DAG size: 1110 [2019-10-07 14:50:02,371 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:50:02,372 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.generateProof(TraceAbstractionRefinementEngine.java:177) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.executeStrategy(TraceAbstractionRefinementEngine.java:167) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.RefinementEngineFactory.runRefinementEngine(RefinementEngineFactory.java:133) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:436) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:419) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:368) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:332) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:170) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:122) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) Caused by: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε at de.uni_freiburg.informatik.ultimate.lib.sifa.PriorityWorklist.add(PriorityWorklist.java:97) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.lambda$2(DagInterpreter.java:135) at java.lang.Iterable.forEach(Iterable.java:75) at java.util.Collections$UnmodifiableCollection.forEach(Collections.java:1080) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:135) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:104) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.computeTopSummary(TopInputCallSummarizer.java:78) at java.util.HashMap.computeIfAbsent(HashMap.java:1127) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.summarize(TopInputCallSummarizer.java:67) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretCallReturnSummary(DagInterpreter.java:230) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:214) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:197) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:166) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:130) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:104) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.computeTopSummary(TopInputCallSummarizer.java:78) at java.util.HashMap.computeIfAbsent(HashMap.java:1127) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.summarize(TopInputCallSummarizer.java:67) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretCallReturnSummary(DagInterpreter.java:230) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:214) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:197) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:166) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:130) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:104) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.computeTopSummary(TopInputCallSummarizer.java:78) at java.util.HashMap.computeIfAbsent(HashMap.java:1127) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.summarize(TopInputCallSummarizer.java:67) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretCallReturnSummary(DagInterpreter.java:230) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:214) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:197) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:166) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:130) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpretLoisInProcedure(IcfgInterpreter.java:139) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpret(IcfgInterpreter.java:129) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:99) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:99) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:287) ... 21 more [2019-10-07 14:50:02,379 INFO L168 Benchmark]: Toolchain (without parser) took 152490.51 ms. Allocated memory was 144.7 MB in the beginning and 759.7 MB in the end (delta: 615.0 MB). Free memory was 100.0 MB in the beginning and 147.7 MB in the end (delta: -47.6 MB). Peak memory consumption was 567.4 MB. Max. memory is 7.1 GB. [2019-10-07 14:50:02,380 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 144.7 MB. Free memory was 121.1 MB in the beginning and 120.9 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2019-10-07 14:50:02,380 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1043.65 ms. Allocated memory was 144.7 MB in the beginning and 202.9 MB in the end (delta: 58.2 MB). Free memory was 99.6 MB in the beginning and 141.9 MB in the end (delta: -42.3 MB). Peak memory consumption was 29.7 MB. Max. memory is 7.1 GB. [2019-10-07 14:50:02,381 INFO L168 Benchmark]: Boogie Preprocessor took 191.15 ms. Allocated memory is still 202.9 MB. Free memory was 141.9 MB in the beginning and 132.6 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. [2019-10-07 14:50:02,381 INFO L168 Benchmark]: RCFGBuilder took 4980.89 ms. Allocated memory was 202.9 MB in the beginning and 296.2 MB in the end (delta: 93.3 MB). Free memory was 132.6 MB in the beginning and 111.9 MB in the end (delta: 20.8 MB). Peak memory consumption was 114.1 MB. Max. memory is 7.1 GB. [2019-10-07 14:50:02,382 INFO L168 Benchmark]: TraceAbstraction took 146270.16 ms. Allocated memory was 296.2 MB in the beginning and 759.7 MB in the end (delta: 463.5 MB). Free memory was 111.9 MB in the beginning and 147.7 MB in the end (delta: -35.8 MB). Peak memory consumption was 427.7 MB. Max. memory is 7.1 GB. [2019-10-07 14:50:02,385 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 144.7 MB. Free memory was 121.1 MB in the beginning and 120.9 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1043.65 ms. Allocated memory was 144.7 MB in the beginning and 202.9 MB in the end (delta: 58.2 MB). Free memory was 99.6 MB in the beginning and 141.9 MB in the end (delta: -42.3 MB). Peak memory consumption was 29.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 191.15 ms. Allocated memory is still 202.9 MB. Free memory was 141.9 MB in the beginning and 132.6 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 4980.89 ms. Allocated memory was 202.9 MB in the beginning and 296.2 MB in the end (delta: 93.3 MB). Free memory was 132.6 MB in the beginning and 111.9 MB in the end (delta: 20.8 MB). Peak memory consumption was 114.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 146270.16 ms. Allocated memory was 296.2 MB in the beginning and 759.7 MB in the end (delta: 463.5 MB). Free memory was 111.9 MB in the beginning and 147.7 MB in the end (delta: -35.8 MB). Peak memory consumption was 427.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε: de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:295) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...