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_product32.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-36ac518-m [2019-10-07 14:49:56,682 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-07 14:49:56,685 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-07 14:49:56,703 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-07 14:49:56,704 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-07 14:49:56,706 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-07 14:49:56,707 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-07 14:49:56,717 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-07 14:49:56,722 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-07 14:49:56,725 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-07 14:49:56,726 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-07 14:49:56,727 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-07 14:49:56,727 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-07 14:49:56,729 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-07 14:49:56,731 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-07 14:49:56,733 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-07 14:49:56,734 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-07 14:49:56,735 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-07 14:49:56,736 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-07 14:49:56,741 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-07 14:49:56,743 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-07 14:49:56,744 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-07 14:49:56,745 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-07 14:49:56,746 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-07 14:49:56,747 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-07 14:49:56,748 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-07 14:49:56,748 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-07 14:49:56,749 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-07 14:49:56,749 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-07 14:49:56,750 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-07 14:49:56,750 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-07 14:49:56,751 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-07 14:49:56,751 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-07 14:49:56,752 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-07 14:49:56,753 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-07 14:49:56,753 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-07 14:49:56,754 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-07 14:49:56,754 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-07 14:49:56,754 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-07 14:49:56,755 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-07 14:49:56,756 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-07 14:49:56,757 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 14:49:56,770 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-07 14:49:56,771 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-07 14:49:56,772 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-07 14:49:56,772 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-07 14:49:56,772 INFO L138 SettingsManager]: * Use SBE=true [2019-10-07 14:49:56,773 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-07 14:49:56,773 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-07 14:49:56,773 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-07 14:49:56,773 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-07 14:49:56,773 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-07 14:49:56,773 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-07 14:49:56,774 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-07 14:49:56,774 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-07 14:49:56,774 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-07 14:49:56,776 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-07 14:49:56,776 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-07 14:49:56,777 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-07 14:49:56,777 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-07 14:49:56,777 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-07 14:49:56,777 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-07 14:49:56,777 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-07 14:49:56,778 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 14:49:56,778 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-07 14:49:56,778 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-07 14:49:56,778 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-07 14:49:56,778 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-07 14:49:56,779 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-07 14:49:56,779 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-07 14:49:56,779 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 14:49:57,079 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-07 14:49:57,092 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-07 14:49:57,096 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-07 14:49:57,098 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-07 14:49:57,098 INFO L275 PluginConnector]: CDTParser initialized [2019-10-07 14:49:57,099 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec27_product32.cil.c [2019-10-07 14:49:57,177 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/92b1b0be6/357653069fc744b192e66eb53c91e00d/FLAG7f4906f69 [2019-10-07 14:49:57,868 INFO L306 CDTParser]: Found 1 translation units. [2019-10-07 14:49:57,868 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec27_product32.cil.c [2019-10-07 14:49:57,899 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/92b1b0be6/357653069fc744b192e66eb53c91e00d/FLAG7f4906f69 [2019-10-07 14:49:58,090 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/92b1b0be6/357653069fc744b192e66eb53c91e00d [2019-10-07 14:49:58,101 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-07 14:49:58,103 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-07 14:49:58,104 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-07 14:49:58,104 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-07 14:49:58,108 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-07 14:49:58,109 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 02:49:58" (1/1) ... [2019-10-07 14:49:58,112 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b8b59a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:49:58, skipping insertion in model container [2019-10-07 14:49:58,113 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 02:49:58" (1/1) ... [2019-10-07 14:49:58,120 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-07 14:49:58,183 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-07 14:49:58,980 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 14:49:59,007 INFO L188 MainTranslator]: Completed pre-run [2019-10-07 14:49:59,148 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 14:49:59,249 INFO L192 MainTranslator]: Completed translation [2019-10-07 14:49:59,250 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:49:59 WrapperNode [2019-10-07 14:49:59,250 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-07 14:49:59,251 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-07 14:49:59,251 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-07 14:49:59,251 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-07 14:49:59,269 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:49:59" (1/1) ... [2019-10-07 14:49:59,277 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:49:59" (1/1) ... [2019-10-07 14:49:59,343 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:49:59" (1/1) ... [2019-10-07 14:49:59,346 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:49:59" (1/1) ... [2019-10-07 14:49:59,434 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:49:59" (1/1) ... [2019-10-07 14:49:59,471 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:49:59" (1/1) ... [2019-10-07 14:49:59,490 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:49:59" (1/1) ... [2019-10-07 14:49:59,509 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-07 14:49:59,510 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-07 14:49:59,510 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-07 14:49:59,510 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-07 14:49:59,511 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:49:59" (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 14:49:59,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-07 14:49:59,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-07 14:49:59,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-07 14:49:59,595 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-07 14:49:59,595 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-07 14:49:59,596 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-07 14:49:59,597 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-07 14:49:59,597 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-07 14:49:59,597 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-07 14:49:59,597 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-07 14:49:59,597 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-07 14:49:59,598 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-07 14:49:59,598 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-07 14:49:59,599 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-07 14:49:59,599 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-07 14:49:59,599 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-07 14:49:59,601 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-07 14:49:59,602 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-07 14:49:59,602 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-07 14:49:59,602 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-07 14:49:59,602 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-07 14:49:59,603 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-07 14:49:59,603 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-07 14:49:59,603 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-07 14:49:59,603 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-07 14:49:59,603 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-07 14:49:59,603 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-07 14:49:59,604 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-07 14:49:59,605 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-07 14:49:59,605 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-07 14:49:59,605 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-07 14:49:59,605 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-07 14:49:59,605 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__VerifyForward_spec__1 [2019-10-07 14:49:59,605 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-07 14:49:59,606 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-07 14:49:59,606 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-07 14:49:59,606 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-07 14:49:59,606 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-07 14:49:59,606 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-07 14:49:59,606 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-07 14:49:59,606 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-07 14:49:59,607 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-07 14:49:59,607 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-07 14:49:59,607 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-07 14:49:59,607 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-07 14:49:59,607 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-07 14:49:59,607 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-07 14:49:59,607 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-07 14:49:59,608 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-07 14:49:59,608 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-07 14:49:59,608 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-07 14:49:59,608 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-07 14:49:59,608 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-07 14:49:59,608 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-07 14:49:59,608 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-07 14:49:59,609 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-07 14:49:59,609 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-07 14:49:59,609 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-07 14:49:59,609 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-07 14:49:59,610 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-07 14:49:59,610 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-10-07 14:49:59,610 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-10-07 14:49:59,611 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-07 14:49:59,611 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-07 14:49:59,611 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2019-10-07 14:49:59,611 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AddressBook [2019-10-07 14:49:59,611 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-07 14:49:59,611 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-07 14:49:59,612 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Encrypt [2019-10-07 14:49:59,612 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-10-07 14:49:59,612 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Verify [2019-10-07 14:49:59,612 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-07 14:49:59,612 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-07 14:49:59,613 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-07 14:49:59,613 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-07 14:49:59,613 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-07 14:49:59,614 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-07 14:49:59,614 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-07 14:49:59,614 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-07 14:49:59,614 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-07 14:49:59,615 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-10-07 14:49:59,615 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-10-07 14:49:59,616 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-07 14:49:59,616 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-07 14:49:59,616 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-07 14:49:59,616 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-07 14:49:59,616 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-07 14:49:59,617 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-07 14:49:59,617 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-07 14:49:59,617 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-07 14:49:59,618 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-07 14:49:59,618 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-07 14:49:59,618 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-07 14:49:59,618 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-07 14:49:59,618 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-07 14:49:59,618 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-07 14:49:59,618 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-07 14:49:59,619 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-07 14:49:59,619 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-07 14:49:59,619 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-07 14:49:59,619 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-07 14:49:59,619 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-07 14:49:59,619 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-07 14:49:59,619 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-07 14:49:59,620 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-07 14:49:59,620 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-07 14:49:59,620 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-07 14:49:59,620 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-07 14:49:59,620 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-07 14:49:59,620 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-07 14:49:59,620 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__AddressBook [2019-10-07 14:49:59,621 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Sign [2019-10-07 14:49:59,621 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-07 14:49:59,621 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-07 14:49:59,621 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-07 14:49:59,622 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-07 14:49:59,622 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-07 14:49:59,622 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-07 14:49:59,622 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-07 14:49:59,622 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-07 14:49:59,623 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-07 14:49:59,623 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-07 14:49:59,623 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-07 14:49:59,623 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-07 14:49:59,624 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-07 14:49:59,625 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-07 14:49:59,625 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-07 14:49:59,625 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-07 14:49:59,625 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-07 14:49:59,625 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-07 14:49:59,625 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-07 14:49:59,626 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-07 14:49:59,626 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-07 14:49:59,627 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-07 14:49:59,630 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-07 14:49:59,630 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-07 14:49:59,631 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-07 14:49:59,631 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-07 14:49:59,632 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-07 14:49:59,632 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-07 14:49:59,632 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-07 14:49:59,632 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-07 14:49:59,632 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-07 14:49:59,633 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-07 14:49:59,633 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-07 14:49:59,633 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-07 14:49:59,633 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-07 14:49:59,634 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-07 14:49:59,634 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-07 14:49:59,634 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-07 14:49:59,634 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-07 14:49:59,634 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-07 14:49:59,634 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-07 14:49:59,634 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__VerifyForward_spec__1 [2019-10-07 14:49:59,634 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-07 14:49:59,635 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-07 14:49:59,635 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-07 14:49:59,635 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-07 14:49:59,635 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-07 14:49:59,635 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-07 14:49:59,635 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-07 14:49:59,637 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-07 14:49:59,637 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-07 14:49:59,637 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-07 14:49:59,638 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-07 14:49:59,638 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-07 14:49:59,638 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-07 14:49:59,638 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-07 14:49:59,638 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-07 14:49:59,638 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-07 14:49:59,639 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-07 14:49:59,639 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-07 14:49:59,639 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-07 14:49:59,639 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-07 14:49:59,639 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-07 14:49:59,639 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-07 14:49:59,639 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-07 14:49:59,640 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-07 14:49:59,640 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-07 14:49:59,640 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-07 14:49:59,640 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-07 14:49:59,640 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-07 14:49:59,640 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-07 14:49:59,640 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-07 14:49:59,641 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-07 14:49:59,641 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-07 14:49:59,641 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-07 14:49:59,641 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-07 14:49:59,641 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-07 14:49:59,641 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-07 14:49:59,642 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-07 14:49:59,642 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-07 14:49:59,642 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-07 14:49:59,642 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-07 14:49:59,642 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-07 14:49:59,642 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-07 14:49:59,643 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-07 14:49:59,643 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-07 14:49:59,643 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-07 14:49:59,643 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-10-07 14:49:59,643 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-10-07 14:49:59,644 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-07 14:49:59,644 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-07 14:49:59,644 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-07 14:49:59,644 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-07 14:49:59,644 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-07 14:49:59,644 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-07 14:49:59,645 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-07 14:49:59,645 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-07 14:49:59,646 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-07 14:49:59,646 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-07 14:49:59,647 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-07 14:49:59,647 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-07 14:49:59,647 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-07 14:49:59,647 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-07 14:49:59,647 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-07 14:49:59,647 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-07 14:49:59,649 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-07 14:49:59,649 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-07 14:49:59,649 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-07 14:49:59,649 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-07 14:49:59,649 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-07 14:49:59,650 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-07 14:49:59,650 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-07 14:49:59,650 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-10-07 14:49:59,650 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-10-07 14:49:59,650 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-07 14:49:59,650 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-07 14:49:59,651 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-07 14:49:59,651 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2019-10-07 14:49:59,651 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AddressBook [2019-10-07 14:49:59,651 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Encrypt [2019-10-07 14:49:59,651 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-10-07 14:49:59,652 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Verify [2019-10-07 14:49:59,652 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-07 14:49:59,652 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-07 14:49:59,652 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-07 14:49:59,652 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-07 14:49:59,652 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-07 14:49:59,653 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-07 14:49:59,653 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-07 14:49:59,653 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-07 14:49:59,653 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-07 14:49:59,653 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-07 14:49:59,653 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-07 14:49:59,654 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__AddressBook [2019-10-07 14:49:59,654 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Sign [2019-10-07 14:49:59,654 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-07 14:49:59,654 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-07 14:49:59,654 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-07 14:49:59,655 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-07 14:50:04,526 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-07 14:50:04,527 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-07 14:50:04,528 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 02:50:04 BoogieIcfgContainer [2019-10-07 14:50:04,528 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-07 14:50:04,530 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-07 14:50:04,530 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-07 14:50:04,533 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-07 14:50:04,533 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.10 02:49:58" (1/3) ... [2019-10-07 14:50:04,534 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e29f718 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 02:50:04, skipping insertion in model container [2019-10-07 14:50:04,534 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:49:59" (2/3) ... [2019-10-07 14:50:04,535 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e29f718 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 02:50:04, skipping insertion in model container [2019-10-07 14:50:04,535 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 02:50:04" (3/3) ... [2019-10-07 14:50:04,537 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec27_product32.cil.c [2019-10-07 14:50:04,547 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-07 14:50:04,557 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-07 14:50:04,569 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-07 14:50:04,600 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-07 14:50:04,600 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-07 14:50:04,600 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-07 14:50:04,600 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-07 14:50:04,600 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-07 14:50:04,601 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-07 14:50:04,601 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-07 14:50:04,601 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-07 14:50:04,639 INFO L276 IsEmpty]: Start isEmpty. Operand 446 states. [2019-10-07 14:50:04,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2019-10-07 14:50:04,671 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:50:04,673 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 14:50:04,675 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:50:04,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:50:04,680 INFO L82 PathProgramCache]: Analyzing trace with hash 1197640387, now seen corresponding path program 1 times [2019-10-07 14:50:04,688 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:50:04,688 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:50:04,688 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:50:04,688 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:50:04,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:50:05,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:50:05,298 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 14:50:05,299 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:50:05,300 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:50:05,300 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-07 14:50:05,305 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-07 14:50:05,320 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-07 14:50:05,321 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-07 14:50:05,324 INFO L87 Difference]: Start difference. First operand 446 states. Second operand 2 states. [2019-10-07 14:50:05,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:50:05,430 INFO L93 Difference]: Finished difference Result 636 states and 763 transitions. [2019-10-07 14:50:05,431 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-07 14:50:05,432 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 174 [2019-10-07 14:50:05,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:50:05,451 INFO L225 Difference]: With dead ends: 636 [2019-10-07 14:50:05,451 INFO L226 Difference]: Without dead ends: 400 [2019-10-07 14:50:05,458 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 14:50:05,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 400 states. [2019-10-07 14:50:05,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 400 to 400. [2019-10-07 14:50:05,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 400 states. [2019-10-07 14:50:05,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 400 states to 400 states and 473 transitions. [2019-10-07 14:50:05,566 INFO L78 Accepts]: Start accepts. Automaton has 400 states and 473 transitions. Word has length 174 [2019-10-07 14:50:05,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:50:05,569 INFO L462 AbstractCegarLoop]: Abstraction has 400 states and 473 transitions. [2019-10-07 14:50:05,569 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-07 14:50:05,569 INFO L276 IsEmpty]: Start isEmpty. Operand 400 states and 473 transitions. [2019-10-07 14:50:05,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2019-10-07 14:50:05,574 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:50:05,574 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] [2019-10-07 14:50:05,575 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:50:05,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:50:05,575 INFO L82 PathProgramCache]: Analyzing trace with hash -337901159, now seen corresponding path program 1 times [2019-10-07 14:50:05,576 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:50:05,576 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:50:05,576 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:50:05,576 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:50:05,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:50:05,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:50:06,029 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 14:50:06,030 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:50:06,030 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:50:06,030 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 14:50:06,041 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 14:50:06,042 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 14:50:06,042 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 14:50:06,042 INFO L87 Difference]: Start difference. First operand 400 states and 473 transitions. Second operand 3 states. [2019-10-07 14:50:06,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:50:06,092 INFO L93 Difference]: Finished difference Result 621 states and 726 transitions. [2019-10-07 14:50:06,092 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 14:50:06,092 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 175 [2019-10-07 14:50:06,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:50:06,098 INFO L225 Difference]: With dead ends: 621 [2019-10-07 14:50:06,098 INFO L226 Difference]: Without dead ends: 402 [2019-10-07 14:50:06,101 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 14:50:06,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 402 states. [2019-10-07 14:50:06,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 402 to 402. [2019-10-07 14:50:06,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 402 states. [2019-10-07 14:50:06,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 402 states to 402 states and 475 transitions. [2019-10-07 14:50:06,149 INFO L78 Accepts]: Start accepts. Automaton has 402 states and 475 transitions. Word has length 175 [2019-10-07 14:50:06,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:50:06,150 INFO L462 AbstractCegarLoop]: Abstraction has 402 states and 475 transitions. [2019-10-07 14:50:06,150 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 14:50:06,150 INFO L276 IsEmpty]: Start isEmpty. Operand 402 states and 475 transitions. [2019-10-07 14:50:06,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2019-10-07 14:50:06,154 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:50:06,156 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:50:06,156 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:50:06,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:50:06,156 INFO L82 PathProgramCache]: Analyzing trace with hash -1763003140, now seen corresponding path program 1 times [2019-10-07 14:50:06,157 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:50:06,157 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:50:06,157 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:50:06,157 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:50:06,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:50:06,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:50:06,406 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-10-07 14:50:06,407 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:50:06,407 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:50:06,407 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 14:50:06,409 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 14:50:06,410 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 14:50:06,410 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 14:50:06,410 INFO L87 Difference]: Start difference. First operand 402 states and 475 transitions. Second operand 3 states. [2019-10-07 14:50:06,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:50:06,451 INFO L93 Difference]: Finished difference Result 788 states and 960 transitions. [2019-10-07 14:50:06,452 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 14:50:06,453 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 184 [2019-10-07 14:50:06,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:50:06,459 INFO L225 Difference]: With dead ends: 788 [2019-10-07 14:50:06,459 INFO L226 Difference]: Without dead ends: 444 [2019-10-07 14:50:06,463 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 14:50:06,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 444 states. [2019-10-07 14:50:06,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 444 to 443. [2019-10-07 14:50:06,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 443 states. [2019-10-07 14:50:06,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443 states to 443 states and 546 transitions. [2019-10-07 14:50:06,508 INFO L78 Accepts]: Start accepts. Automaton has 443 states and 546 transitions. Word has length 184 [2019-10-07 14:50:06,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:50:06,509 INFO L462 AbstractCegarLoop]: Abstraction has 443 states and 546 transitions. [2019-10-07 14:50:06,509 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 14:50:06,509 INFO L276 IsEmpty]: Start isEmpty. Operand 443 states and 546 transitions. [2019-10-07 14:50:06,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2019-10-07 14:50:06,514 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:50:06,515 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:50:06,515 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:50:06,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:50:06,516 INFO L82 PathProgramCache]: Analyzing trace with hash 1576496453, now seen corresponding path program 1 times [2019-10-07 14:50:06,516 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:50:06,516 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:50:06,516 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:50:06,516 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:50:06,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:50:06,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:50:06,685 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-10-07 14:50:06,685 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:50:06,686 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:50:06,686 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 14:50:06,686 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 14:50:06,687 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 14:50:06,687 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 14:50:06,687 INFO L87 Difference]: Start difference. First operand 443 states and 546 transitions. Second operand 3 states. [2019-10-07 14:50:06,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:50:06,725 INFO L93 Difference]: Finished difference Result 908 states and 1168 transitions. [2019-10-07 14:50:06,726 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 14:50:06,726 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 185 [2019-10-07 14:50:06,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:50:06,736 INFO L225 Difference]: With dead ends: 908 [2019-10-07 14:50:06,736 INFO L226 Difference]: Without dead ends: 523 [2019-10-07 14:50:06,739 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 14:50:06,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 523 states. [2019-10-07 14:50:06,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 523 to 522. [2019-10-07 14:50:06,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 522 states. [2019-10-07 14:50:06,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 522 states to 522 states and 682 transitions. [2019-10-07 14:50:06,791 INFO L78 Accepts]: Start accepts. Automaton has 522 states and 682 transitions. Word has length 185 [2019-10-07 14:50:06,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:50:06,792 INFO L462 AbstractCegarLoop]: Abstraction has 522 states and 682 transitions. [2019-10-07 14:50:06,792 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 14:50:06,792 INFO L276 IsEmpty]: Start isEmpty. Operand 522 states and 682 transitions. [2019-10-07 14:50:06,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2019-10-07 14:50:06,800 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:50:06,801 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:50:06,801 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:50:06,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:50:06,802 INFO L82 PathProgramCache]: Analyzing trace with hash -1211164531, now seen corresponding path program 1 times [2019-10-07 14:50:06,802 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:50:06,802 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:50:06,802 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:50:06,803 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:50:06,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:50:06,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:50:07,686 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2019-10-07 14:50:07,686 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:50:07,687 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:50:07,687 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2019-10-07 14:50:07,688 INFO L442 AbstractCegarLoop]: Interpolant automaton has 28 states [2019-10-07 14:50:07,688 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2019-10-07 14:50:07,689 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=687, Unknown=0, NotChecked=0, Total=756 [2019-10-07 14:50:07,689 INFO L87 Difference]: Start difference. First operand 522 states and 682 transitions. Second operand 28 states. [2019-10-07 14:50:17,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:50:17,285 INFO L93 Difference]: Finished difference Result 1043 states and 1332 transitions. [2019-10-07 14:50:17,286 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2019-10-07 14:50:17,286 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 188 [2019-10-07 14:50:17,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:50:17,291 INFO L225 Difference]: With dead ends: 1043 [2019-10-07 14:50:17,292 INFO L226 Difference]: Without dead ends: 832 [2019-10-07 14:50:17,294 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 352 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=178, Invalid=2078, Unknown=0, NotChecked=0, Total=2256 [2019-10-07 14:50:17,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 832 states. [2019-10-07 14:50:17,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 832 to 803. [2019-10-07 14:50:17,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 803 states. [2019-10-07 14:50:17,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 803 states to 803 states and 1034 transitions. [2019-10-07 14:50:17,338 INFO L78 Accepts]: Start accepts. Automaton has 803 states and 1034 transitions. Word has length 188 [2019-10-07 14:50:17,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:50:17,339 INFO L462 AbstractCegarLoop]: Abstraction has 803 states and 1034 transitions. [2019-10-07 14:50:17,339 INFO L463 AbstractCegarLoop]: Interpolant automaton has 28 states. [2019-10-07 14:50:17,339 INFO L276 IsEmpty]: Start isEmpty. Operand 803 states and 1034 transitions. [2019-10-07 14:50:17,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2019-10-07 14:50:17,343 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:50:17,344 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:50:17,344 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:50:17,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:50:17,344 INFO L82 PathProgramCache]: Analyzing trace with hash -2127093432, now seen corresponding path program 1 times [2019-10-07 14:50:17,345 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:50:17,345 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:50:17,345 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:50:17,345 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:50:17,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:50:17,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:50:17,569 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2019-10-07 14:50:17,569 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:50:17,570 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:50:17,570 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-10-07 14:50:17,571 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-07 14:50:17,571 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-07 14:50:17,571 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-10-07 14:50:17,571 INFO L87 Difference]: Start difference. First operand 803 states and 1034 transitions. Second operand 10 states. [2019-10-07 14:50:17,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:50:17,654 INFO L93 Difference]: Finished difference Result 1295 states and 1656 transitions. [2019-10-07 14:50:17,654 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-07 14:50:17,654 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 192 [2019-10-07 14:50:17,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:50:17,662 INFO L225 Difference]: With dead ends: 1295 [2019-10-07 14:50:17,662 INFO L226 Difference]: Without dead ends: 823 [2019-10-07 14:50:17,665 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-10-07 14:50:17,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 823 states. [2019-10-07 14:50:17,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 823 to 807. [2019-10-07 14:50:17,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 807 states. [2019-10-07 14:50:17,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 807 states to 807 states and 1037 transitions. [2019-10-07 14:50:17,713 INFO L78 Accepts]: Start accepts. Automaton has 807 states and 1037 transitions. Word has length 192 [2019-10-07 14:50:17,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:50:17,714 INFO L462 AbstractCegarLoop]: Abstraction has 807 states and 1037 transitions. [2019-10-07 14:50:17,714 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-07 14:50:17,714 INFO L276 IsEmpty]: Start isEmpty. Operand 807 states and 1037 transitions. [2019-10-07 14:50:17,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2019-10-07 14:50:17,718 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:50:17,719 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:50:17,719 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:50:17,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:50:17,720 INFO L82 PathProgramCache]: Analyzing trace with hash 1037126365, now seen corresponding path program 1 times [2019-10-07 14:50:17,720 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:50:17,721 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:50:17,721 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:50:17,721 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:50:17,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:50:17,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:50:18,575 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2019-10-07 14:50:18,575 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:50:18,576 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:50:18,576 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [33] imperfect sequences [] total 33 [2019-10-07 14:50:18,576 INFO L442 AbstractCegarLoop]: Interpolant automaton has 33 states [2019-10-07 14:50:18,577 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2019-10-07 14:50:18,578 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=969, Unknown=0, NotChecked=0, Total=1056 [2019-10-07 14:50:18,578 INFO L87 Difference]: Start difference. First operand 807 states and 1037 transitions. Second operand 33 states. [2019-10-07 14:50:33,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:50:33,155 INFO L93 Difference]: Finished difference Result 1911 states and 2430 transitions. [2019-10-07 14:50:33,155 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2019-10-07 14:50:33,155 INFO L78 Accepts]: Start accepts. Automaton has 33 states. Word has length 194 [2019-10-07 14:50:33,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:50:33,169 INFO L225 Difference]: With dead ends: 1911 [2019-10-07 14:50:33,169 INFO L226 Difference]: Without dead ends: 1431 [2019-10-07 14:50:33,173 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 617 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=315, Invalid=3975, Unknown=0, NotChecked=0, Total=4290 [2019-10-07 14:50:33,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1431 states. [2019-10-07 14:50:33,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1431 to 1411. [2019-10-07 14:50:33,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1411 states. [2019-10-07 14:50:33,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1411 states to 1411 states and 1808 transitions. [2019-10-07 14:50:33,270 INFO L78 Accepts]: Start accepts. Automaton has 1411 states and 1808 transitions. Word has length 194 [2019-10-07 14:50:33,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:50:33,272 INFO L462 AbstractCegarLoop]: Abstraction has 1411 states and 1808 transitions. [2019-10-07 14:50:33,272 INFO L463 AbstractCegarLoop]: Interpolant automaton has 33 states. [2019-10-07 14:50:33,272 INFO L276 IsEmpty]: Start isEmpty. Operand 1411 states and 1808 transitions. [2019-10-07 14:50:33,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2019-10-07 14:50:33,277 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:50:33,278 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:50:33,278 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:50:33,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:50:33,279 INFO L82 PathProgramCache]: Analyzing trace with hash 2100859293, now seen corresponding path program 1 times [2019-10-07 14:50:33,279 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:50:33,279 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:50:33,279 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:50:33,279 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:50:33,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:50:33,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:50:34,166 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-07 14:50:34,166 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:50:34,166 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:50:34,166 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2019-10-07 14:50:34,167 INFO L442 AbstractCegarLoop]: Interpolant automaton has 27 states [2019-10-07 14:50:34,167 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2019-10-07 14:50:34,168 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=635, Unknown=0, NotChecked=0, Total=702 [2019-10-07 14:50:34,168 INFO L87 Difference]: Start difference. First operand 1411 states and 1808 transitions. Second operand 27 states. [2019-10-07 14:50:48,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:50:48,961 INFO L93 Difference]: Finished difference Result 3466 states and 4361 transitions. [2019-10-07 14:50:48,962 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2019-10-07 14:50:48,962 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 218 [2019-10-07 14:50:48,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:50:48,976 INFO L225 Difference]: With dead ends: 3466 [2019-10-07 14:50:48,976 INFO L226 Difference]: Without dead ends: 2364 [2019-10-07 14:50:48,982 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 532 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=273, Invalid=2807, Unknown=0, NotChecked=0, Total=3080 [2019-10-07 14:50:48,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2364 states. [2019-10-07 14:50:49,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2364 to 2283. [2019-10-07 14:50:49,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2283 states. [2019-10-07 14:50:49,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2283 states to 2283 states and 2850 transitions. [2019-10-07 14:50:49,100 INFO L78 Accepts]: Start accepts. Automaton has 2283 states and 2850 transitions. Word has length 218 [2019-10-07 14:50:49,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:50:49,101 INFO L462 AbstractCegarLoop]: Abstraction has 2283 states and 2850 transitions. [2019-10-07 14:50:49,101 INFO L463 AbstractCegarLoop]: Interpolant automaton has 27 states. [2019-10-07 14:50:49,101 INFO L276 IsEmpty]: Start isEmpty. Operand 2283 states and 2850 transitions. [2019-10-07 14:50:49,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2019-10-07 14:50:49,108 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:50:49,109 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:50:49,109 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:50:49,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:50:49,109 INFO L82 PathProgramCache]: Analyzing trace with hash 685618116, now seen corresponding path program 1 times [2019-10-07 14:50:49,110 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:50:49,110 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:50:49,110 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:50:49,110 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:50:49,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:50:49,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:50:50,109 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2019-10-07 14:50:50,109 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:50:50,110 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:50:50,110 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 14:50:50,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:50:50,802 INFO L256 TraceCheckSpWp]: Trace formula consists of 3255 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-07 14:50:50,826 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:50:50,964 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2019-10-07 14:50:50,964 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:50:51,277 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2019-10-07 14:50:51,277 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2019-10-07 14:50:51,306 INFO L162 IcfgInterpreter]: Started Sifa with 203 locations of interest [2019-10-07 14:50:51,307 INFO L169 IcfgInterpreter]: Building call graph [2019-10-07 14:50:51,315 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-07 14:50:51,323 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-07 14:50:51,324 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-07 14:52:07,655 WARN L191 SmtUtils]: Spent 524.00 ms on a formula simplification that was a NOOP. DAG size: 698 [2019-10-07 14:52:11,965 WARN L191 SmtUtils]: Spent 1.56 s on a formula simplification. DAG size of input: 329 DAG size of output: 267 [2019-10-07 14:52:12,430 WARN L191 SmtUtils]: Spent 456.00 ms on a formula simplification that was a NOOP. DAG size: 744 [2019-10-07 14:52:12,833 WARN L191 SmtUtils]: Spent 397.00 ms on a formula simplification that was a NOOP. DAG size: 744 [2019-10-07 14:52:13,242 WARN L191 SmtUtils]: Spent 406.00 ms on a formula simplification that was a NOOP. DAG size: 744 [2019-10-07 14:52:13,555 WARN L191 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 450 [2019-10-07 14:52:14,337 WARN L191 SmtUtils]: Spent 779.00 ms on a formula simplification that was a NOOP. DAG size: 1042 [2019-10-07 14:52:15,065 WARN L191 SmtUtils]: Spent 709.00 ms on a formula simplification that was a NOOP. DAG size: 1042 [2019-10-07 14:52:15,770 WARN L191 SmtUtils]: Spent 700.00 ms on a formula simplification that was a NOOP. DAG size: 1042 [2019-10-07 14:52:15,925 WARN L191 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 450 [2019-10-07 14:52:16,613 WARN L191 SmtUtils]: Spent 686.00 ms on a formula simplification that was a NOOP. DAG size: 1042 [2019-10-07 14:52:18,106 WARN L191 SmtUtils]: Spent 1.47 s on a formula simplification. DAG size of input: 1044 DAG size of output: 1042 [2019-10-07 14:52:18,803 WARN L191 SmtUtils]: Spent 693.00 ms on a formula simplification that was a NOOP. DAG size: 1042 [2019-10-07 14:52:18,963 WARN L191 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 450 [2019-10-07 14:52:19,600 WARN L191 SmtUtils]: Spent 635.00 ms on a formula simplification that was a NOOP. DAG size: 1042 [2019-10-07 14:52:20,305 WARN L191 SmtUtils]: Spent 702.00 ms on a formula simplification that was a NOOP. DAG size: 1042 [2019-10-07 14:52:20,949 WARN L191 SmtUtils]: Spent 639.00 ms on a formula simplification that was a NOOP. DAG size: 1042 [2019-10-07 14:52:21,077 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 450 [2019-10-07 14:52:21,734 WARN L191 SmtUtils]: Spent 655.00 ms on a formula simplification that was a NOOP. DAG size: 1042 [2019-10-07 14:52:21,762 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 565 for LOIs [2019-10-07 14:52:22,162 WARN L191 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 663 [2019-10-07 14:52:22,274 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 663 [2019-10-07 14:52:22,399 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 450 [2019-10-07 14:52:22,923 WARN L191 SmtUtils]: Spent 522.00 ms on a formula simplification that was a NOOP. DAG size: 961 [2019-10-07 14:52:22,925 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 1100 for LOIs [2019-10-07 14:52:23,543 WARN L191 SmtUtils]: Spent 616.00 ms on a formula simplification that was a NOOP. DAG size: 1100 [2019-10-07 14:52:24,200 WARN L191 SmtUtils]: Spent 653.00 ms on a formula simplification that was a NOOP. DAG size: 1100 [2019-10-07 14:52:24,460 WARN L191 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 645 [2019-10-07 14:52:25,540 WARN L191 SmtUtils]: Spent 1.08 s on a formula simplification that was a NOOP. DAG size: 1302 [2019-10-07 14:52:26,177 WARN L191 SmtUtils]: Spent 624.00 ms on a formula simplification that was a NOOP. DAG size: 1100 [2019-10-07 14:52:26,830 WARN L191 SmtUtils]: Spent 649.00 ms on a formula simplification that was a NOOP. DAG size: 1100 [2019-10-07 14:52:27,111 WARN L191 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 645 [2019-10-07 14:52:28,165 WARN L191 SmtUtils]: Spent 1.05 s on a formula simplification that was a NOOP. DAG size: 1302 [2019-10-07 14:52:28,892 WARN L191 SmtUtils]: Spent 686.00 ms on a formula simplification that was a NOOP. DAG size: 1100 [2019-10-07 14:52:29,510 WARN L191 SmtUtils]: Spent 614.00 ms on a formula simplification that was a NOOP. DAG size: 1100 [2019-10-07 14:52:29,790 WARN L191 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 645 [2019-10-07 14:52:30,842 WARN L191 SmtUtils]: Spent 1.05 s on a formula simplification that was a NOOP. DAG size: 1302 [2019-10-07 14:52:32,006 WARN L191 SmtUtils]: Spent 1.14 s on a formula simplification. DAG size of input: 1304 DAG size of output: 1100 [2019-10-07 14:52:32,632 WARN L191 SmtUtils]: Spent 623.00 ms on a formula simplification that was a NOOP. DAG size: 1100 [2019-10-07 14:52:33,043 WARN L191 SmtUtils]: Spent 392.00 ms on a formula simplification that was a NOOP. DAG size: 645 [2019-10-07 14:52:34,098 WARN L191 SmtUtils]: Spent 1.05 s on a formula simplification that was a NOOP. DAG size: 1302 [2019-10-07 14:52:34,736 WARN L191 SmtUtils]: Spent 621.00 ms on a formula simplification that was a NOOP. DAG size: 1100 [2019-10-07 14:52:35,377 WARN L191 SmtUtils]: Spent 637.00 ms on a formula simplification that was a NOOP. DAG size: 1100 [2019-10-07 14:52:35,710 WARN L191 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 645 [2019-10-07 14:52:36,762 WARN L191 SmtUtils]: Spent 1.05 s on a formula simplification that was a NOOP. DAG size: 1302 [2019-10-07 14:52:37,387 WARN L191 SmtUtils]: Spent 622.00 ms on a formula simplification that was a NOOP. DAG size: 1100 [2019-10-07 14:52:38,008 WARN L191 SmtUtils]: Spent 616.00 ms on a formula simplification that was a NOOP. DAG size: 1100 [2019-10-07 14:52:38,270 WARN L191 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 645 [2019-10-07 14:52:39,324 WARN L191 SmtUtils]: Spent 1.05 s on a formula simplification that was a NOOP. DAG size: 1302 [2019-10-07 14:52:39,944 WARN L191 SmtUtils]: Spent 617.00 ms on a formula simplification that was a NOOP. DAG size: 1100 [2019-10-07 14:52:40,576 WARN L191 SmtUtils]: Spent 628.00 ms on a formula simplification that was a NOOP. DAG size: 1100 [2019-10-07 14:52:40,837 WARN L191 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 645 [2019-10-07 14:52:41,889 WARN L191 SmtUtils]: Spent 1.05 s on a formula simplification that was a NOOP. DAG size: 1302 [2019-10-07 14:52:42,532 WARN L191 SmtUtils]: Spent 640.00 ms on a formula simplification that was a NOOP. DAG size: 1100 [2019-10-07 14:52:43,154 WARN L191 SmtUtils]: Spent 618.00 ms on a formula simplification that was a NOOP. DAG size: 1100 [2019-10-07 14:52:43,413 WARN L191 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 645 [2019-10-07 14:52:44,466 WARN L191 SmtUtils]: Spent 1.05 s on a formula simplification that was a NOOP. DAG size: 1302 [2019-10-07 14:52:45,085 WARN L191 SmtUtils]: Spent 616.00 ms on a formula simplification that was a NOOP. DAG size: 1100 [2019-10-07 14:52:45,707 WARN L191 SmtUtils]: Spent 618.00 ms on a formula simplification that was a NOOP. DAG size: 1100 [2019-10-07 14:52:45,962 WARN L191 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 645 [2019-10-07 14:52:47,011 WARN L191 SmtUtils]: Spent 1.05 s on a formula simplification that was a NOOP. DAG size: 1302 [2019-10-07 14:52:47,630 WARN L191 SmtUtils]: Spent 616.00 ms on a formula simplification that was a NOOP. DAG size: 1100 [2019-10-07 14:52:48,249 WARN L191 SmtUtils]: Spent 616.00 ms on a formula simplification that was a NOOP. DAG size: 1100 [2019-10-07 14:52:48,505 WARN L191 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 645 [2019-10-07 14:52:49,551 WARN L191 SmtUtils]: Spent 1.04 s on a formula simplification that was a NOOP. DAG size: 1302 [2019-10-07 14:52:50,178 WARN L191 SmtUtils]: Spent 623.00 ms on a formula simplification that was a NOOP. DAG size: 1100 [2019-10-07 14:52:50,801 WARN L191 SmtUtils]: Spent 620.00 ms on a formula simplification that was a NOOP. DAG size: 1100 [2019-10-07 14:52:51,060 WARN L191 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 645 [2019-10-07 14:52:52,110 WARN L191 SmtUtils]: Spent 1.05 s on a formula simplification that was a NOOP. DAG size: 1302 [2019-10-07 14:52:52,726 WARN L191 SmtUtils]: Spent 614.00 ms on a formula simplification that was a NOOP. DAG size: 1100 [2019-10-07 14:52:53,355 WARN L191 SmtUtils]: Spent 625.00 ms on a formula simplification that was a NOOP. DAG size: 1100 [2019-10-07 14:52:53,613 WARN L191 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 645 [2019-10-07 14:52:54,660 WARN L191 SmtUtils]: Spent 1.05 s on a formula simplification that was a NOOP. DAG size: 1302 [2019-10-07 14:52:55,286 WARN L191 SmtUtils]: Spent 622.00 ms on a formula simplification that was a NOOP. DAG size: 1100 [2019-10-07 14:52:55,909 WARN L191 SmtUtils]: Spent 621.00 ms on a formula simplification that was a NOOP. DAG size: 1100 [2019-10-07 14:52:56,167 WARN L191 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 645 [2019-10-07 14:52:57,223 WARN L191 SmtUtils]: Spent 1.05 s on a formula simplification that was a NOOP. DAG size: 1302 [2019-10-07 14:52:58,385 WARN L191 SmtUtils]: Spent 1.10 s on a formula simplification that was a NOOP. DAG size: 1302 [2019-10-07 14:52:59,437 WARN L191 SmtUtils]: Spent 1.05 s on a formula simplification that was a NOOP. DAG size: 1302 [2019-10-07 14:52:59,704 WARN L191 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 645 [2019-10-07 14:53:00,750 WARN L191 SmtUtils]: Spent 1.04 s on a formula simplification that was a NOOP. DAG size: 1302 [2019-10-07 14:53:02,925 WARN L191 SmtUtils]: Spent 2.16 s on a formula simplification. DAG size of input: 1304 DAG size of output: 1302 [2019-10-07 14:53:03,974 WARN L191 SmtUtils]: Spent 1.05 s on a formula simplification that was a NOOP. DAG size: 1302 [2019-10-07 14:53:04,251 WARN L191 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 645 [2019-10-07 14:53:05,312 WARN L191 SmtUtils]: Spent 1.06 s on a formula simplification that was a NOOP. DAG size: 1302 [2019-10-07 14:53:06,374 WARN L191 SmtUtils]: Spent 1.06 s on a formula simplification that was a NOOP. DAG size: 1302 [2019-10-07 14:53:07,412 WARN L191 SmtUtils]: Spent 1.03 s on a formula simplification that was a NOOP. DAG size: 1302 [2019-10-07 14:53:07,667 WARN L191 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 645 [2019-10-07 14:53:08,703 WARN L191 SmtUtils]: Spent 1.03 s on a formula simplification that was a NOOP. DAG size: 1302 [2019-10-07 14:53:09,793 WARN L191 SmtUtils]: Spent 1.05 s on a formula simplification that was a NOOP. DAG size: 1304 [2019-10-07 14:53:10,842 WARN L191 SmtUtils]: Spent 1.05 s on a formula simplification that was a NOOP. DAG size: 1304 [2019-10-07 14:53:11,111 WARN L191 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 648 [2019-10-07 14:53:12,178 WARN L191 SmtUtils]: Spent 1.06 s on a formula simplification that was a NOOP. DAG size: 1306 [2019-10-07 14:53:14,363 WARN L191 SmtUtils]: Spent 2.17 s on a formula simplification. DAG size of input: 1308 DAG size of output: 1304 [2019-10-07 14:53:15,424 WARN L191 SmtUtils]: Spent 1.06 s on a formula simplification that was a NOOP. DAG size: 1304 [2019-10-07 14:53:15,696 WARN L191 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 648 [2019-10-07 14:53:16,764 WARN L191 SmtUtils]: Spent 1.07 s on a formula simplification that was a NOOP. DAG size: 1306 [2019-10-07 14:53:17,828 WARN L191 SmtUtils]: Spent 1.06 s on a formula simplification that was a NOOP. DAG size: 1304 [2019-10-07 14:53:18,892 WARN L191 SmtUtils]: Spent 1.06 s on a formula simplification that was a NOOP. DAG size: 1304 [2019-10-07 14:53:19,152 WARN L191 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 648 [2019-10-07 14:53:20,211 WARN L191 SmtUtils]: Spent 1.06 s on a formula simplification that was a NOOP. DAG size: 1306 [2019-10-07 14:53:21,282 WARN L191 SmtUtils]: Spent 1.06 s on a formula simplification that was a NOOP. DAG size: 1311 [2019-10-07 14:53:22,329 WARN L191 SmtUtils]: Spent 1.04 s on a formula simplification that was a NOOP. DAG size: 1311 [2019-10-07 14:53:22,612 WARN L191 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 648 [2019-10-07 14:53:23,681 WARN L191 SmtUtils]: Spent 1.07 s on a formula simplification that was a NOOP. DAG size: 1311 [2019-10-07 14:53:24,745 WARN L191 SmtUtils]: Spent 1.06 s on a formula simplification that was a NOOP. DAG size: 1313 [2019-10-07 14:53:25,811 WARN L191 SmtUtils]: Spent 1.06 s on a formula simplification that was a NOOP. DAG size: 1313 [2019-10-07 14:53:26,074 WARN L191 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 648 [2019-10-07 14:53:27,134 WARN L191 SmtUtils]: Spent 1.06 s on a formula simplification that was a NOOP. DAG size: 1313 [2019-10-07 14:53:29,322 WARN L191 SmtUtils]: Spent 2.14 s on a formula simplification. DAG size of input: 1304 DAG size of output: 1302 [2019-10-07 14:53:30,373 WARN L191 SmtUtils]: Spent 1.05 s on a formula simplification that was a NOOP. DAG size: 1302 [2019-10-07 14:53:30,687 WARN L191 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 645 [2019-10-07 14:53:31,743 WARN L191 SmtUtils]: Spent 1.05 s on a formula simplification that was a NOOP. DAG size: 1302 [2019-10-07 14:53:33,659 WARN L191 SmtUtils]: Spent 1.90 s on a formula simplification. DAG size of input: 1304 DAG size of output: 1302 [2019-10-07 14:53:34,717 WARN L191 SmtUtils]: Spent 1.05 s on a formula simplification that was a NOOP. DAG size: 1302 [2019-10-07 14:53:34,985 WARN L191 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 645 [2019-10-07 14:53:36,028 WARN L191 SmtUtils]: Spent 1.04 s on a formula simplification that was a NOOP. DAG size: 1302 [2019-10-07 14:53:37,078 WARN L191 SmtUtils]: Spent 1.05 s on a formula simplification that was a NOOP. DAG size: 1302 [2019-10-07 14:53:38,135 WARN L191 SmtUtils]: Spent 1.05 s on a formula simplification that was a NOOP. DAG size: 1302 [2019-10-07 14:53:38,391 WARN L191 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 645 [2019-10-07 14:53:39,432 WARN L191 SmtUtils]: Spent 1.04 s on a formula simplification that was a NOOP. DAG size: 1302 [2019-10-07 14:53:41,363 WARN L191 SmtUtils]: Spent 1.89 s on a formula simplification. DAG size of input: 1304 DAG size of output: 1302 [2019-10-07 14:53:42,411 WARN L191 SmtUtils]: Spent 1.04 s on a formula simplification that was a NOOP. DAG size: 1302 [2019-10-07 14:53:42,674 WARN L191 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 645 [2019-10-07 14:53:43,710 WARN L191 SmtUtils]: Spent 1.03 s on a formula simplification that was a NOOP. DAG size: 1302 [2019-10-07 14:53:45,601 WARN L191 SmtUtils]: Spent 1.88 s on a formula simplification. DAG size of input: 1304 DAG size of output: 1302 [2019-10-07 14:53:46,659 WARN L191 SmtUtils]: Spent 1.05 s on a formula simplification that was a NOOP. DAG size: 1302 [2019-10-07 14:53:46,928 WARN L191 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 645 [2019-10-07 14:53:47,984 WARN L191 SmtUtils]: Spent 1.05 s on a formula simplification that was a NOOP. DAG size: 1302 [2019-10-07 14:53:49,025 WARN L191 SmtUtils]: Spent 1.04 s on a formula simplification that was a NOOP. DAG size: 1302 [2019-10-07 14:53:50,070 WARN L191 SmtUtils]: Spent 1.04 s on a formula simplification that was a NOOP. DAG size: 1302 [2019-10-07 14:53:50,324 WARN L191 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 645 [2019-10-07 14:53:51,363 WARN L191 SmtUtils]: Spent 1.04 s on a formula simplification that was a NOOP. DAG size: 1302 [2019-10-07 14:53:53,270 WARN L191 SmtUtils]: Spent 1.87 s on a formula simplification. DAG size of input: 1308 DAG size of output: 1306 [2019-10-07 14:53:54,305 WARN L191 SmtUtils]: Spent 1.03 s on a formula simplification that was a NOOP. DAG size: 1306 [2019-10-07 14:53:54,567 WARN L191 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 648 [2019-10-07 14:53:55,607 WARN L191 SmtUtils]: Spent 1.04 s on a formula simplification that was a NOOP. DAG size: 1306 [2019-10-07 14:53:56,666 WARN L191 SmtUtils]: Spent 1.04 s on a formula simplification that was a NOOP. DAG size: 1306 [2019-10-07 14:53:57,716 WARN L191 SmtUtils]: Spent 1.05 s on a formula simplification that was a NOOP. DAG size: 1306 [2019-10-07 14:53:57,987 WARN L191 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 648 [2019-10-07 14:53:59,044 WARN L191 SmtUtils]: Spent 1.06 s on a formula simplification that was a NOOP. DAG size: 1306 [2019-10-07 14:54:00,079 WARN L191 SmtUtils]: Spent 1.03 s on a formula simplification that was a NOOP. DAG size: 1306 [2019-10-07 14:54:01,119 WARN L191 SmtUtils]: Spent 1.04 s on a formula simplification that was a NOOP. DAG size: 1306 [2019-10-07 14:54:01,374 WARN L191 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 648 [2019-10-07 14:54:02,409 WARN L191 SmtUtils]: Spent 1.03 s on a formula simplification that was a NOOP. DAG size: 1306 [2019-10-07 14:54:03,461 WARN L191 SmtUtils]: Spent 1.04 s on a formula simplification that was a NOOP. DAG size: 1311 [2019-10-07 14:54:04,514 WARN L191 SmtUtils]: Spent 1.05 s on a formula simplification that was a NOOP. DAG size: 1311 [2019-10-07 14:54:04,802 WARN L191 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 648 [2019-10-07 14:54:05,853 WARN L191 SmtUtils]: Spent 1.05 s on a formula simplification that was a NOOP. DAG size: 1311 [2019-10-07 14:54:07,745 WARN L191 SmtUtils]: Spent 1.89 s on a formula simplification. DAG size of input: 1315 DAG size of output: 1313 [2019-10-07 14:54:08,796 WARN L191 SmtUtils]: Spent 1.05 s on a formula simplification that was a NOOP. DAG size: 1313 [2019-10-07 14:54:09,060 WARN L191 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 648 [2019-10-07 14:54:10,109 WARN L191 SmtUtils]: Spent 1.05 s on a formula simplification that was a NOOP. DAG size: 1313 [2019-10-07 14:54:10,379 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:54:10,380 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 14:54:10,388 INFO L168 Benchmark]: Toolchain (without parser) took 252285.00 ms. Allocated memory was 146.3 MB in the beginning and 617.6 MB in the end (delta: 471.3 MB). Free memory was 100.7 MB in the beginning and 390.3 MB in the end (delta: -289.6 MB). Peak memory consumption was 181.7 MB. Max. memory is 7.1 GB. [2019-10-07 14:54:10,389 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 146.3 MB. Free memory was 122.7 MB in the beginning and 122.5 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2019-10-07 14:54:10,389 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1146.16 ms. Allocated memory was 146.3 MB in the beginning and 203.9 MB in the end (delta: 57.7 MB). Free memory was 100.5 MB in the beginning and 134.9 MB in the end (delta: -34.4 MB). Peak memory consumption was 31.4 MB. Max. memory is 7.1 GB. [2019-10-07 14:54:10,390 INFO L168 Benchmark]: Boogie Preprocessor took 258.31 ms. Allocated memory is still 203.9 MB. Free memory was 134.9 MB in the beginning and 125.2 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. [2019-10-07 14:54:10,391 INFO L168 Benchmark]: RCFGBuilder took 5019.03 ms. Allocated memory was 203.9 MB in the beginning and 297.8 MB in the end (delta: 93.8 MB). Free memory was 124.5 MB in the beginning and 240.7 MB in the end (delta: -116.2 MB). Peak memory consumption was 138.8 MB. Max. memory is 7.1 GB. [2019-10-07 14:54:10,391 INFO L168 Benchmark]: TraceAbstraction took 245856.50 ms. Allocated memory was 297.8 MB in the beginning and 617.6 MB in the end (delta: 319.8 MB). Free memory was 240.7 MB in the beginning and 390.3 MB in the end (delta: -149.6 MB). Peak memory consumption was 170.2 MB. Max. memory is 7.1 GB. [2019-10-07 14:54:10,395 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 146.3 MB. Free memory was 122.7 MB in the beginning and 122.5 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1146.16 ms. Allocated memory was 146.3 MB in the beginning and 203.9 MB in the end (delta: 57.7 MB). Free memory was 100.5 MB in the beginning and 134.9 MB in the end (delta: -34.4 MB). Peak memory consumption was 31.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 258.31 ms. Allocated memory is still 203.9 MB. Free memory was 134.9 MB in the beginning and 125.2 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 5019.03 ms. Allocated memory was 203.9 MB in the beginning and 297.8 MB in the end (delta: 93.8 MB). Free memory was 124.5 MB in the beginning and 240.7 MB in the end (delta: -116.2 MB). Peak memory consumption was 138.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 245856.50 ms. Allocated memory was 297.8 MB in the beginning and 617.6 MB in the end (delta: 319.8 MB). Free memory was 240.7 MB in the beginning and 390.3 MB in the end (delta: -149.6 MB). Peak memory consumption was 170.2 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...