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_spec3_product17.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-36ac518-m [2019-10-07 14:52:09,908 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-07 14:52:09,911 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-07 14:52:09,924 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-07 14:52:09,924 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-07 14:52:09,925 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-07 14:52:09,926 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-07 14:52:09,928 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-07 14:52:09,930 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-07 14:52:09,931 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-07 14:52:09,932 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-07 14:52:09,933 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-07 14:52:09,933 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-07 14:52:09,934 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-07 14:52:09,935 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-07 14:52:09,936 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-07 14:52:09,937 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-07 14:52:09,938 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-07 14:52:09,940 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-07 14:52:09,942 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-07 14:52:09,943 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-07 14:52:09,944 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-07 14:52:09,945 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-07 14:52:09,946 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-07 14:52:09,948 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-07 14:52:09,949 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-07 14:52:09,949 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-07 14:52:09,950 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-07 14:52:09,950 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-07 14:52:09,951 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-07 14:52:09,952 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-07 14:52:09,952 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-07 14:52:09,953 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-07 14:52:09,954 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-07 14:52:09,955 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-07 14:52:09,955 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-07 14:52:09,956 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-07 14:52:09,956 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-07 14:52:09,956 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-07 14:52:09,957 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-07 14:52:09,958 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-07 14:52:09,959 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 14:52:09,973 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-07 14:52:09,973 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-07 14:52:09,975 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-07 14:52:09,975 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-07 14:52:09,975 INFO L138 SettingsManager]: * Use SBE=true [2019-10-07 14:52:09,975 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-07 14:52:09,976 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-07 14:52:09,976 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-07 14:52:09,977 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-07 14:52:09,977 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-07 14:52:09,978 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-07 14:52:09,978 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-07 14:52:09,978 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-07 14:52:09,978 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-07 14:52:09,978 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-07 14:52:09,978 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-07 14:52:09,979 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-07 14:52:09,979 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-07 14:52:09,979 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-07 14:52:09,979 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-07 14:52:09,980 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-07 14:52:09,980 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 14:52:09,980 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-07 14:52:09,981 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-07 14:52:09,982 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-07 14:52:09,982 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-07 14:52:09,982 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-07 14:52:09,982 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-07 14:52:09,982 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 14:52:10,262 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-07 14:52:10,276 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-07 14:52:10,279 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-07 14:52:10,281 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-07 14:52:10,281 INFO L275 PluginConnector]: CDTParser initialized [2019-10-07 14:52:10,282 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec3_product17.cil.c [2019-10-07 14:52:10,360 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fb622d389/f3c58f9584d942c691ba7fb44e7c21b4/FLAG0bf6e0f48 [2019-10-07 14:52:11,007 INFO L306 CDTParser]: Found 1 translation units. [2019-10-07 14:52:11,008 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec3_product17.cil.c [2019-10-07 14:52:11,028 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fb622d389/f3c58f9584d942c691ba7fb44e7c21b4/FLAG0bf6e0f48 [2019-10-07 14:52:11,191 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fb622d389/f3c58f9584d942c691ba7fb44e7c21b4 [2019-10-07 14:52:11,202 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-07 14:52:11,204 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-07 14:52:11,205 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-07 14:52:11,205 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-07 14:52:11,208 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-07 14:52:11,208 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 02:52:11" (1/1) ... [2019-10-07 14:52:11,211 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a8a69ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:52:11, skipping insertion in model container [2019-10-07 14:52:11,211 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 02:52:11" (1/1) ... [2019-10-07 14:52:11,218 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-07 14:52:11,294 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-07 14:52:12,056 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 14:52:12,083 INFO L188 MainTranslator]: Completed pre-run [2019-10-07 14:52:12,205 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 14:52:12,297 INFO L192 MainTranslator]: Completed translation [2019-10-07 14:52:12,298 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:52:12 WrapperNode [2019-10-07 14:52:12,298 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-07 14:52:12,299 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-07 14:52:12,299 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-07 14:52:12,299 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-07 14:52:12,312 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:52:12" (1/1) ... [2019-10-07 14:52:12,312 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:52:12" (1/1) ... [2019-10-07 14:52:12,342 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:52:12" (1/1) ... [2019-10-07 14:52:12,343 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:52:12" (1/1) ... [2019-10-07 14:52:12,401 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:52:12" (1/1) ... [2019-10-07 14:52:12,426 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:52:12" (1/1) ... [2019-10-07 14:52:12,441 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:52:12" (1/1) ... [2019-10-07 14:52:12,475 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-07 14:52:12,477 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-07 14:52:12,478 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-07 14:52:12,478 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-07 14:52:12,479 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:52:12" (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 14:52:12,555 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-07 14:52:12,555 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-07 14:52:12,555 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-07 14:52:12,556 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-07 14:52:12,556 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-07 14:52:12,556 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-07 14:52:12,556 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-07 14:52:12,557 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-07 14:52:12,557 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-07 14:52:12,557 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-07 14:52:12,557 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-07 14:52:12,558 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-07 14:52:12,558 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-07 14:52:12,558 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-07 14:52:12,558 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-07 14:52:12,559 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-07 14:52:12,559 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-07 14:52:12,559 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-07 14:52:12,559 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-07 14:52:12,560 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-07 14:52:12,560 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-07 14:52:12,560 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-07 14:52:12,561 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-10-07 14:52:12,561 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-07 14:52:12,562 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-07 14:52:12,562 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-07 14:52:12,562 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-07 14:52:12,562 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-07 14:52:12,563 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-07 14:52:12,563 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-07 14:52:12,563 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-07 14:52:12,563 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-07 14:52:12,564 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-07 14:52:12,564 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-07 14:52:12,564 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-07 14:52:12,564 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-07 14:52:12,565 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AddressBook [2019-10-07 14:52:12,565 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-07 14:52:12,565 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-07 14:52:12,565 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-10-07 14:52:12,566 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-07 14:52:12,566 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-07 14:52:12,566 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-07 14:52:12,566 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-07 14:52:12,566 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-07 14:52:12,567 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-07 14:52:12,567 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-07 14:52:12,567 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-07 14:52:12,567 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-07 14:52:12,567 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-10-07 14:52:12,567 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-07 14:52:12,568 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-07 14:52:12,568 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-07 14:52:12,568 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__SignVerify_spec__1 [2019-10-07 14:52:12,568 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__SignVerify_spec__2 [2019-10-07 14:52:12,568 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-07 14:52:12,569 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-07 14:52:12,569 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-07 14:52:12,569 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-07 14:52:12,569 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-07 14:52:12,569 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-07 14:52:12,570 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-07 14:52:12,570 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-07 14:52:12,570 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-07 14:52:12,570 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-07 14:52:12,570 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-07 14:52:12,571 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-07 14:52:12,571 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-07 14:52:12,571 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-07 14:52:12,571 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-07 14:52:12,571 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-07 14:52:12,571 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-07 14:52:12,572 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-07 14:52:12,572 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-07 14:52:12,572 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-07 14:52:12,572 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-07 14:52:12,572 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-07 14:52:12,573 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-07 14:52:12,573 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-07 14:52:12,573 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-07 14:52:12,573 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-07 14:52:12,573 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-07 14:52:12,574 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-07 14:52:12,574 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-07 14:52:12,574 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__AddressBook [2019-10-07 14:52:12,574 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Sign [2019-10-07 14:52:12,574 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-07 14:52:12,574 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-07 14:52:12,575 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-07 14:52:12,575 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-07 14:52:12,575 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-07 14:52:12,575 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-07 14:52:12,575 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-07 14:52:12,576 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-07 14:52:12,576 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-07 14:52:12,576 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-07 14:52:12,576 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-07 14:52:12,576 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-07 14:52:12,577 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-07 14:52:12,577 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-07 14:52:12,577 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-07 14:52:12,577 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-07 14:52:12,577 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-07 14:52:12,577 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-07 14:52:12,577 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-07 14:52:12,578 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-07 14:52:12,578 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-07 14:52:12,578 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-07 14:52:12,578 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-07 14:52:12,578 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-07 14:52:12,578 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-07 14:52:12,578 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-07 14:52:12,579 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-07 14:52:12,579 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-07 14:52:12,579 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-07 14:52:12,579 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-07 14:52:12,579 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-07 14:52:12,579 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-07 14:52:12,580 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-07 14:52:12,580 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-07 14:52:12,580 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-07 14:52:12,580 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-07 14:52:12,580 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-07 14:52:12,580 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-07 14:52:12,580 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-07 14:52:12,581 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-07 14:52:12,581 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-07 14:52:12,581 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-07 14:52:12,581 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-07 14:52:12,581 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-07 14:52:12,581 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-07 14:52:12,582 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-07 14:52:12,582 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-07 14:52:12,582 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-07 14:52:12,582 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-07 14:52:12,582 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-07 14:52:12,582 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-07 14:52:12,583 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-07 14:52:12,583 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-07 14:52:12,583 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-07 14:52:12,583 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-07 14:52:12,583 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-07 14:52:12,583 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-07 14:52:12,584 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-07 14:52:12,584 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-07 14:52:12,584 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-07 14:52:12,584 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-07 14:52:12,584 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-07 14:52:12,584 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-07 14:52:12,584 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-07 14:52:12,585 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-07 14:52:12,585 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-07 14:52:12,585 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-10-07 14:52:12,585 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-07 14:52:12,585 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-07 14:52:12,585 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-07 14:52:12,586 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-07 14:52:12,586 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-07 14:52:12,586 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-07 14:52:12,586 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-07 14:52:12,586 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-07 14:52:12,587 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-07 14:52:12,587 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-07 14:52:12,587 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-07 14:52:12,587 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-07 14:52:12,587 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-07 14:52:12,588 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-07 14:52:12,588 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-07 14:52:12,588 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-07 14:52:12,588 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-07 14:52:12,588 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-07 14:52:12,589 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-07 14:52:12,589 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-07 14:52:12,589 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-07 14:52:12,589 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-07 14:52:12,589 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-07 14:52:12,589 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-07 14:52:12,590 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-07 14:52:12,590 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-07 14:52:12,590 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-07 14:52:12,590 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-07 14:52:12,590 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-07 14:52:12,591 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-07 14:52:12,591 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-07 14:52:12,591 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-07 14:52:12,591 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-07 14:52:12,591 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-07 14:52:12,591 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-07 14:52:12,591 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-07 14:52:12,592 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-07 14:52:12,592 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-07 14:52:12,592 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-07 14:52:12,592 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-07 14:52:12,592 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-07 14:52:12,592 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-07 14:52:12,592 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-07 14:52:12,592 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-07 14:52:12,593 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-10-07 14:52:12,593 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-07 14:52:12,593 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-07 14:52:12,593 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__SignVerify_spec__1 [2019-10-07 14:52:12,593 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-07 14:52:12,593 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AddressBook [2019-10-07 14:52:12,594 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-10-07 14:52:12,594 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__SignVerify_spec__2 [2019-10-07 14:52:12,594 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-07 14:52:12,594 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-07 14:52:12,594 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-07 14:52:12,594 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-07 14:52:12,594 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-07 14:52:12,594 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-07 14:52:12,595 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-07 14:52:12,595 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-07 14:52:12,595 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-07 14:52:12,595 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-07 14:52:12,595 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-07 14:52:12,595 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-07 14:52:12,595 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-07 14:52:12,596 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-07 14:52:12,596 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-07 14:52:12,596 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-07 14:52:12,596 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-07 14:52:12,596 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-07 14:52:12,596 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-07 14:52:12,596 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__AddressBook [2019-10-07 14:52:12,597 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Sign [2019-10-07 14:52:12,597 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-07 14:52:12,597 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-07 14:52:12,597 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-07 14:52:12,597 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-07 14:52:12,597 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-07 14:52:12,598 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-07 14:52:12,598 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-07 14:52:12,598 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-07 14:52:12,598 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-07 14:52:12,598 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-07 14:52:12,598 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-07 14:52:12,599 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-07 14:52:12,599 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-07 14:52:17,525 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-07 14:52:17,525 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-07 14:52:17,527 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 02:52:17 BoogieIcfgContainer [2019-10-07 14:52:17,527 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-07 14:52:17,529 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-07 14:52:17,529 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-07 14:52:17,532 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-07 14:52:17,532 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.10 02:52:11" (1/3) ... [2019-10-07 14:52:17,533 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32ea395c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 02:52:17, skipping insertion in model container [2019-10-07 14:52:17,533 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:52:12" (2/3) ... [2019-10-07 14:52:17,534 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32ea395c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 02:52:17, skipping insertion in model container [2019-10-07 14:52:17,534 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 02:52:17" (3/3) ... [2019-10-07 14:52:17,536 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec3_product17.cil.c [2019-10-07 14:52:17,545 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-07 14:52:17,554 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-07 14:52:17,566 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-07 14:52:17,596 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-07 14:52:17,597 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-07 14:52:17,597 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-07 14:52:17,597 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-07 14:52:17,597 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-07 14:52:17,597 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-07 14:52:17,598 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-07 14:52:17,598 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-07 14:52:17,627 INFO L276 IsEmpty]: Start isEmpty. Operand 380 states. [2019-10-07 14:52:17,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2019-10-07 14:52:17,645 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:52:17,646 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:52:17,649 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:52:17,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:52:17,655 INFO L82 PathProgramCache]: Analyzing trace with hash 1826743954, now seen corresponding path program 1 times [2019-10-07 14:52:17,663 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:52:17,663 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:52:17,664 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:52:17,664 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:52:17,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:52:18,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:52:18,430 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-07 14:52:18,431 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:52:18,431 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:52:18,432 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-07 14:52:18,438 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-07 14:52:18,453 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-07 14:52:18,454 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-07 14:52:18,456 INFO L87 Difference]: Start difference. First operand 380 states. Second operand 2 states. [2019-10-07 14:52:18,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:52:18,531 INFO L93 Difference]: Finished difference Result 517 states and 620 transitions. [2019-10-07 14:52:18,531 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-07 14:52:18,532 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 141 [2019-10-07 14:52:18,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:52:18,558 INFO L225 Difference]: With dead ends: 517 [2019-10-07 14:52:18,558 INFO L226 Difference]: Without dead ends: 337 [2019-10-07 14:52:18,569 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 14:52:18,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337 states. [2019-10-07 14:52:18,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337 to 337. [2019-10-07 14:52:18,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 337 states. [2019-10-07 14:52:18,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 399 transitions. [2019-10-07 14:52:18,690 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 399 transitions. Word has length 141 [2019-10-07 14:52:18,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:52:18,693 INFO L462 AbstractCegarLoop]: Abstraction has 337 states and 399 transitions. [2019-10-07 14:52:18,693 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-07 14:52:18,693 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 399 transitions. [2019-10-07 14:52:18,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2019-10-07 14:52:18,698 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:52:18,699 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:52:18,699 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:52:18,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:52:18,699 INFO L82 PathProgramCache]: Analyzing trace with hash -1248301962, now seen corresponding path program 1 times [2019-10-07 14:52:18,700 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:52:18,700 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:52:18,700 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:52:18,700 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:52:18,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:52:18,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:52:18,976 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-07 14:52:18,977 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:52:18,977 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:52:18,977 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 14:52:18,987 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 14:52:18,988 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 14:52:18,988 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 14:52:18,988 INFO L87 Difference]: Start difference. First operand 337 states and 399 transitions. Second operand 3 states. [2019-10-07 14:52:19,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:52:19,046 INFO L93 Difference]: Finished difference Result 502 states and 585 transitions. [2019-10-07 14:52:19,049 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 14:52:19,050 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 142 [2019-10-07 14:52:19,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:52:19,063 INFO L225 Difference]: With dead ends: 502 [2019-10-07 14:52:19,063 INFO L226 Difference]: Without dead ends: 339 [2019-10-07 14:52:19,067 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 14:52:19,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339 states. [2019-10-07 14:52:19,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339 to 339. [2019-10-07 14:52:19,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 339 states. [2019-10-07 14:52:19,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 401 transitions. [2019-10-07 14:52:19,122 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 401 transitions. Word has length 142 [2019-10-07 14:52:19,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:52:19,123 INFO L462 AbstractCegarLoop]: Abstraction has 339 states and 401 transitions. [2019-10-07 14:52:19,123 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 14:52:19,123 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 401 transitions. [2019-10-07 14:52:19,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2019-10-07 14:52:19,127 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:52:19,130 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:52:19,130 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:52:19,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:52:19,131 INFO L82 PathProgramCache]: Analyzing trace with hash 581994393, now seen corresponding path program 1 times [2019-10-07 14:52:19,131 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:52:19,131 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:52:19,131 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:52:19,131 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:52:19,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:52:19,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:52:19,381 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-07 14:52:19,381 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:52:19,382 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:52:19,382 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 14:52:19,384 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 14:52:19,385 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 14:52:19,385 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 14:52:19,385 INFO L87 Difference]: Start difference. First operand 339 states and 401 transitions. Second operand 3 states. [2019-10-07 14:52:19,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:52:19,607 INFO L93 Difference]: Finished difference Result 660 states and 809 transitions. [2019-10-07 14:52:19,607 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 14:52:19,608 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 147 [2019-10-07 14:52:19,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:52:19,616 INFO L225 Difference]: With dead ends: 660 [2019-10-07 14:52:19,617 INFO L226 Difference]: Without dead ends: 379 [2019-10-07 14:52:19,620 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 14:52:19,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 379 states. [2019-10-07 14:52:19,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 379 to 378. [2019-10-07 14:52:19,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 378 states. [2019-10-07 14:52:19,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 378 states to 378 states and 469 transitions. [2019-10-07 14:52:19,671 INFO L78 Accepts]: Start accepts. Automaton has 378 states and 469 transitions. Word has length 147 [2019-10-07 14:52:19,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:52:19,672 INFO L462 AbstractCegarLoop]: Abstraction has 378 states and 469 transitions. [2019-10-07 14:52:19,672 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 14:52:19,673 INFO L276 IsEmpty]: Start isEmpty. Operand 378 states and 469 transitions. [2019-10-07 14:52:19,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2019-10-07 14:52:19,687 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:52:19,687 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:52:19,688 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:52:19,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:52:19,688 INFO L82 PathProgramCache]: Analyzing trace with hash 1410511617, now seen corresponding path program 1 times [2019-10-07 14:52:19,689 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:52:19,689 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:52:19,689 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:52:19,690 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:52:19,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:52:19,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:52:20,450 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-07 14:52:20,451 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:52:20,451 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:52:20,451 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2019-10-07 14:52:20,454 INFO L442 AbstractCegarLoop]: Interpolant automaton has 25 states [2019-10-07 14:52:20,454 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2019-10-07 14:52:20,457 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=538, Unknown=0, NotChecked=0, Total=600 [2019-10-07 14:52:20,457 INFO L87 Difference]: Start difference. First operand 378 states and 469 transitions. Second operand 25 states. [2019-10-07 14:52:31,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:52:31,740 INFO L93 Difference]: Finished difference Result 933 states and 1123 transitions. [2019-10-07 14:52:31,741 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2019-10-07 14:52:31,741 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 148 [2019-10-07 14:52:31,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:52:31,748 INFO L225 Difference]: With dead ends: 933 [2019-10-07 14:52:31,748 INFO L226 Difference]: Without dead ends: 770 [2019-10-07 14:52:31,751 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 737 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=404, Invalid=3018, Unknown=0, NotChecked=0, Total=3422 [2019-10-07 14:52:31,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 770 states. [2019-10-07 14:52:31,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 770 to 759. [2019-10-07 14:52:31,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 759 states. [2019-10-07 14:52:31,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 759 states to 759 states and 910 transitions. [2019-10-07 14:52:31,805 INFO L78 Accepts]: Start accepts. Automaton has 759 states and 910 transitions. Word has length 148 [2019-10-07 14:52:31,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:52:31,806 INFO L462 AbstractCegarLoop]: Abstraction has 759 states and 910 transitions. [2019-10-07 14:52:31,806 INFO L463 AbstractCegarLoop]: Interpolant automaton has 25 states. [2019-10-07 14:52:31,806 INFO L276 IsEmpty]: Start isEmpty. Operand 759 states and 910 transitions. [2019-10-07 14:52:31,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2019-10-07 14:52:31,809 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:52:31,810 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:52:31,810 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:52:31,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:52:31,811 INFO L82 PathProgramCache]: Analyzing trace with hash -1817497414, now seen corresponding path program 1 times [2019-10-07 14:52:31,811 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:52:31,811 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:52:31,811 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:52:31,811 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:52:31,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:52:31,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:52:31,988 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-07 14:52:31,988 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:52:31,989 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:52:31,989 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 14:52:32,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:52:32,675 INFO L256 TraceCheckSpWp]: Trace formula consists of 2632 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-07 14:52:32,693 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:52:32,762 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-07 14:52:32,763 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:52:32,966 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-07 14:52:32,967 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2019-10-07 14:52:32,997 INFO L162 IcfgInterpreter]: Started Sifa with 143 locations of interest [2019-10-07 14:52:32,997 INFO L169 IcfgInterpreter]: Building call graph [2019-10-07 14:52:33,004 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-07 14:52:33,012 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-07 14:52:33,013 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-07 14:53:37,189 WARN L191 SmtUtils]: Spent 432.00 ms on a formula simplification that was a NOOP. DAG size: 701 [2019-10-07 14:53:41,796 WARN L191 SmtUtils]: Spent 1.60 s on a formula simplification. DAG size of input: 326 DAG size of output: 265 [2019-10-07 14:53:42,161 WARN L191 SmtUtils]: Spent 357.00 ms on a formula simplification that was a NOOP. DAG size: 745 [2019-10-07 14:53:42,534 WARN L191 SmtUtils]: Spent 368.00 ms on a formula simplification that was a NOOP. DAG size: 745 [2019-10-07 14:53:42,775 WARN L191 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 745 [2019-10-07 14:53:42,925 WARN L191 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 454 [2019-10-07 14:53:43,612 WARN L191 SmtUtils]: Spent 685.00 ms on a formula simplification that was a NOOP. DAG size: 1046 [2019-10-07 14:53:44,340 WARN L191 SmtUtils]: Spent 709.00 ms on a formula simplification that was a NOOP. DAG size: 1046 [2019-10-07 14:53:44,958 WARN L191 SmtUtils]: Spent 614.00 ms on a formula simplification that was a NOOP. DAG size: 1046 [2019-10-07 14:53:45,160 WARN L191 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 454 [2019-10-07 14:53:45,783 WARN L191 SmtUtils]: Spent 621.00 ms on a formula simplification that was a NOOP. DAG size: 1046 [2019-10-07 14:53:47,047 WARN L191 SmtUtils]: Spent 1.24 s on a formula simplification. DAG size of input: 1048 DAG size of output: 1046 [2019-10-07 14:53:47,640 WARN L191 SmtUtils]: Spent 589.00 ms on a formula simplification that was a NOOP. DAG size: 1046 [2019-10-07 14:53:47,781 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 454 [2019-10-07 14:53:48,403 WARN L191 SmtUtils]: Spent 620.00 ms on a formula simplification that was a NOOP. DAG size: 1046 [2019-10-07 14:53:49,027 WARN L191 SmtUtils]: Spent 620.00 ms on a formula simplification that was a NOOP. DAG size: 1046 [2019-10-07 14:53:49,640 WARN L191 SmtUtils]: Spent 609.00 ms on a formula simplification that was a NOOP. DAG size: 1046 [2019-10-07 14:53:49,758 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 454 [2019-10-07 14:53:50,364 WARN L191 SmtUtils]: Spent 604.00 ms on a formula simplification that was a NOOP. DAG size: 1046 [2019-10-07 14:53:50,393 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 568 for LOIs [2019-10-07 14:53:50,772 WARN L191 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 666 [2019-10-07 14:53:50,886 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 666 [2019-10-07 14:53:51,024 WARN L191 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 454 [2019-10-07 14:53:51,467 WARN L191 SmtUtils]: Spent 441.00 ms on a formula simplification that was a NOOP. DAG size: 967 [2019-10-07 14:53:51,468 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 1093 for LOIs [2019-10-07 14:53:52,086 WARN L191 SmtUtils]: Spent 617.00 ms on a formula simplification that was a NOOP. DAG size: 1093 [2019-10-07 14:53:52,661 WARN L191 SmtUtils]: Spent 571.00 ms on a formula simplification that was a NOOP. DAG size: 1093 [2019-10-07 14:53:53,021 WARN L191 SmtUtils]: Spent 351.00 ms on a formula simplification that was a NOOP. DAG size: 623 [2019-10-07 14:53:53,940 WARN L191 SmtUtils]: Spent 917.00 ms on a formula simplification that was a NOOP. DAG size: 1270 [2019-10-07 14:53:54,575 WARN L191 SmtUtils]: Spent 620.00 ms on a formula simplification that was a NOOP. DAG size: 1093 [2019-10-07 14:53:55,159 WARN L191 SmtUtils]: Spent 581.00 ms on a formula simplification that was a NOOP. DAG size: 1093 [2019-10-07 14:53:55,384 WARN L191 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 623 [2019-10-07 14:53:56,303 WARN L191 SmtUtils]: Spent 917.00 ms on a formula simplification that was a NOOP. DAG size: 1270 [2019-10-07 14:53:56,937 WARN L191 SmtUtils]: Spent 603.00 ms on a formula simplification that was a NOOP. DAG size: 1093 [2019-10-07 14:53:57,521 WARN L191 SmtUtils]: Spent 581.00 ms on a formula simplification that was a NOOP. DAG size: 1093 [2019-10-07 14:53:57,789 WARN L191 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 623 [2019-10-07 14:53:58,704 WARN L191 SmtUtils]: Spent 913.00 ms on a formula simplification that was a NOOP. DAG size: 1270 [2019-10-07 14:53:59,714 WARN L191 SmtUtils]: Spent 979.00 ms on a formula simplification. DAG size of input: 1272 DAG size of output: 1093 [2019-10-07 14:54:00,299 WARN L191 SmtUtils]: Spent 582.00 ms on a formula simplification that was a NOOP. DAG size: 1093 [2019-10-07 14:54:00,581 WARN L191 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 623 [2019-10-07 14:54:01,528 WARN L191 SmtUtils]: Spent 946.00 ms on a formula simplification that was a NOOP. DAG size: 1270 [2019-10-07 14:54:02,129 WARN L191 SmtUtils]: Spent 585.00 ms on a formula simplification that was a NOOP. DAG size: 1093 [2019-10-07 14:54:02,714 WARN L191 SmtUtils]: Spent 581.00 ms on a formula simplification that was a NOOP. DAG size: 1093 [2019-10-07 14:54:03,030 WARN L191 SmtUtils]: Spent 311.00 ms on a formula simplification that was a NOOP. DAG size: 623 [2019-10-07 14:54:03,971 WARN L191 SmtUtils]: Spent 939.00 ms on a formula simplification that was a NOOP. DAG size: 1270 [2019-10-07 14:54:04,558 WARN L191 SmtUtils]: Spent 584.00 ms on a formula simplification that was a NOOP. DAG size: 1093 [2019-10-07 14:54:05,156 WARN L191 SmtUtils]: Spent 593.00 ms on a formula simplification that was a NOOP. DAG size: 1093 [2019-10-07 14:54:05,389 WARN L191 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 623 [2019-10-07 14:54:06,314 WARN L191 SmtUtils]: Spent 923.00 ms on a formula simplification that was a NOOP. DAG size: 1270 [2019-10-07 14:54:06,924 WARN L191 SmtUtils]: Spent 607.00 ms on a formula simplification that was a NOOP. DAG size: 1093 [2019-10-07 14:54:07,510 WARN L191 SmtUtils]: Spent 582.00 ms on a formula simplification that was a NOOP. DAG size: 1093 [2019-10-07 14:54:07,753 WARN L191 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 623 [2019-10-07 14:54:08,702 WARN L191 SmtUtils]: Spent 948.00 ms on a formula simplification that was a NOOP. DAG size: 1270 [2019-10-07 14:54:09,288 WARN L191 SmtUtils]: Spent 582.00 ms on a formula simplification that was a NOOP. DAG size: 1093 [2019-10-07 14:54:09,873 WARN L191 SmtUtils]: Spent 581.00 ms on a formula simplification that was a NOOP. DAG size: 1093 [2019-10-07 14:54:10,098 WARN L191 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 623 [2019-10-07 14:54:11,014 WARN L191 SmtUtils]: Spent 914.00 ms on a formula simplification that was a NOOP. DAG size: 1270 [2019-10-07 14:54:11,601 WARN L191 SmtUtils]: Spent 583.00 ms on a formula simplification that was a NOOP. DAG size: 1093 [2019-10-07 14:54:12,200 WARN L191 SmtUtils]: Spent 596.00 ms on a formula simplification that was a NOOP. DAG size: 1093 [2019-10-07 14:54:12,426 WARN L191 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 623 [2019-10-07 14:54:13,349 WARN L191 SmtUtils]: Spent 921.00 ms on a formula simplification that was a NOOP. DAG size: 1270 [2019-10-07 14:54:13,954 WARN L191 SmtUtils]: Spent 602.00 ms on a formula simplification that was a NOOP. DAG size: 1093 [2019-10-07 14:54:14,541 WARN L191 SmtUtils]: Spent 583.00 ms on a formula simplification that was a NOOP. DAG size: 1093 [2019-10-07 14:54:14,768 WARN L191 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 623 [2019-10-07 14:54:15,697 WARN L191 SmtUtils]: Spent 926.00 ms on a formula simplification that was a NOOP. DAG size: 1270 [2019-10-07 14:54:16,285 WARN L191 SmtUtils]: Spent 585.00 ms on a formula simplification that was a NOOP. DAG size: 1093 [2019-10-07 14:54:16,873 WARN L191 SmtUtils]: Spent 585.00 ms on a formula simplification that was a NOOP. DAG size: 1093 [2019-10-07 14:54:17,099 WARN L191 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 623 [2019-10-07 14:54:18,021 WARN L191 SmtUtils]: Spent 920.00 ms on a formula simplification that was a NOOP. DAG size: 1270 [2019-10-07 14:54:18,607 WARN L191 SmtUtils]: Spent 583.00 ms on a formula simplification that was a NOOP. DAG size: 1093 [2019-10-07 14:54:19,196 WARN L191 SmtUtils]: Spent 586.00 ms on a formula simplification that was a NOOP. DAG size: 1093 [2019-10-07 14:54:19,421 WARN L191 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 623 [2019-10-07 14:54:20,355 WARN L191 SmtUtils]: Spent 932.00 ms on a formula simplification that was a NOOP. DAG size: 1270 [2019-10-07 14:54:20,943 WARN L191 SmtUtils]: Spent 585.00 ms on a formula simplification that was a NOOP. DAG size: 1093 [2019-10-07 14:54:21,530 WARN L191 SmtUtils]: Spent 584.00 ms on a formula simplification that was a NOOP. DAG size: 1093 [2019-10-07 14:54:21,761 WARN L191 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 623 [2019-10-07 14:54:22,696 WARN L191 SmtUtils]: Spent 932.00 ms on a formula simplification that was a NOOP. DAG size: 1270 [2019-10-07 14:54:23,680 WARN L191 SmtUtils]: Spent 934.00 ms on a formula simplification that was a NOOP. DAG size: 1270 [2019-10-07 14:54:24,614 WARN L191 SmtUtils]: Spent 929.00 ms on a formula simplification that was a NOOP. DAG size: 1270 [2019-10-07 14:54:24,852 WARN L191 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 623 [2019-10-07 14:54:25,787 WARN L191 SmtUtils]: Spent 933.00 ms on a formula simplification that was a NOOP. DAG size: 1270 [2019-10-07 14:54:27,488 WARN L191 SmtUtils]: Spent 1.69 s on a formula simplification. DAG size of input: 1272 DAG size of output: 1270 [2019-10-07 14:54:28,419 WARN L191 SmtUtils]: Spent 927.00 ms on a formula simplification that was a NOOP. DAG size: 1270 [2019-10-07 14:54:28,662 WARN L191 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 623 [2019-10-07 14:54:29,599 WARN L191 SmtUtils]: Spent 935.00 ms on a formula simplification that was a NOOP. DAG size: 1270 [2019-10-07 14:54:30,537 WARN L191 SmtUtils]: Spent 934.00 ms on a formula simplification that was a NOOP. DAG size: 1270 [2019-10-07 14:54:31,474 WARN L191 SmtUtils]: Spent 934.00 ms on a formula simplification that was a NOOP. DAG size: 1270 [2019-10-07 14:54:31,704 WARN L191 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 623 [2019-10-07 14:54:32,631 WARN L191 SmtUtils]: Spent 924.00 ms on a formula simplification that was a NOOP. DAG size: 1270 [2019-10-07 14:54:33,616 WARN L191 SmtUtils]: Spent 943.00 ms on a formula simplification that was a NOOP. DAG size: 1274 [2019-10-07 14:54:34,565 WARN L191 SmtUtils]: Spent 945.00 ms on a formula simplification that was a NOOP. DAG size: 1274 [2019-10-07 14:54:34,798 WARN L191 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 626 [2019-10-07 14:54:35,735 WARN L191 SmtUtils]: Spent 935.00 ms on a formula simplification that was a NOOP. DAG size: 1274 [2019-10-07 14:54:37,387 WARN L191 SmtUtils]: Spent 1.64 s on a formula simplification. DAG size of input: 1276 DAG size of output: 1272 [2019-10-07 14:54:38,327 WARN L191 SmtUtils]: Spent 936.00 ms on a formula simplification that was a NOOP. DAG size: 1272 [2019-10-07 14:54:38,565 WARN L191 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 626 [2019-10-07 14:54:39,508 WARN L191 SmtUtils]: Spent 941.00 ms on a formula simplification that was a NOOP. DAG size: 1274 [2019-10-07 14:54:41,130 WARN L191 SmtUtils]: Spent 1.62 s on a formula simplification. DAG size of input: 1276 DAG size of output: 1272 [2019-10-07 14:54:42,068 WARN L191 SmtUtils]: Spent 935.00 ms on a formula simplification that was a NOOP. DAG size: 1272 [2019-10-07 14:54:42,297 WARN L191 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 626 [2019-10-07 14:54:43,234 WARN L191 SmtUtils]: Spent 934.00 ms on a formula simplification that was a NOOP. DAG size: 1274 [2019-10-07 14:54:45,036 WARN L191 SmtUtils]: Spent 1.79 s on a formula simplification that was a NOOP. DAG size: 1272 [2019-10-07 14:54:45,976 WARN L191 SmtUtils]: Spent 936.00 ms on a formula simplification that was a NOOP. DAG size: 1272 [2019-10-07 14:54:46,218 WARN L191 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 626 [2019-10-07 14:54:47,155 WARN L191 SmtUtils]: Spent 935.00 ms on a formula simplification that was a NOOP. DAG size: 1274 [2019-10-07 14:54:48,099 WARN L191 SmtUtils]: Spent 940.00 ms on a formula simplification that was a NOOP. DAG size: 1274 [2019-10-07 14:54:49,037 WARN L191 SmtUtils]: Spent 934.00 ms on a formula simplification that was a NOOP. DAG size: 1274 [2019-10-07 14:54:49,276 WARN L191 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 626 [2019-10-07 14:54:50,226 WARN L191 SmtUtils]: Spent 948.00 ms on a formula simplification that was a NOOP. DAG size: 1276 [2019-10-07 14:54:51,970 WARN L191 SmtUtils]: Spent 1.70 s on a formula simplification. DAG size of input: 1272 DAG size of output: 1270 [2019-10-07 14:54:52,907 WARN L191 SmtUtils]: Spent 933.00 ms on a formula simplification that was a NOOP. DAG size: 1270 [2019-10-07 14:54:53,151 WARN L191 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 623 [2019-10-07 14:54:54,098 WARN L191 SmtUtils]: Spent 945.00 ms on a formula simplification that was a NOOP. DAG size: 1270 [2019-10-07 14:54:56,704 WARN L191 SmtUtils]: Spent 2.59 s on a formula simplification. DAG size of input: 1272 DAG size of output: 1270 [2019-10-07 14:54:57,637 WARN L191 SmtUtils]: Spent 929.00 ms on a formula simplification that was a NOOP. DAG size: 1270 [2019-10-07 14:54:57,906 WARN L191 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 623 [2019-10-07 14:54:58,837 WARN L191 SmtUtils]: Spent 929.00 ms on a formula simplification that was a NOOP. DAG size: 1270 [2019-10-07 14:54:59,783 WARN L191 SmtUtils]: Spent 942.00 ms on a formula simplification that was a NOOP. DAG size: 1270 [2019-10-07 14:55:00,719 WARN L191 SmtUtils]: Spent 933.00 ms on a formula simplification that was a NOOP. DAG size: 1270 [2019-10-07 14:55:00,949 WARN L191 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 623 [2019-10-07 14:55:01,891 WARN L191 SmtUtils]: Spent 940.00 ms on a formula simplification that was a NOOP. DAG size: 1270 [2019-10-07 14:55:03,641 WARN L191 SmtUtils]: Spent 1.72 s on a formula simplification. DAG size of input: 1272 DAG size of output: 1270 [2019-10-07 14:55:04,589 WARN L191 SmtUtils]: Spent 945.00 ms on a formula simplification that was a NOOP. DAG size: 1270 [2019-10-07 14:55:04,832 WARN L191 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 623 [2019-10-07 14:55:05,761 WARN L191 SmtUtils]: Spent 928.00 ms on a formula simplification that was a NOOP. DAG size: 1270 [2019-10-07 14:55:07,475 WARN L191 SmtUtils]: Spent 1.70 s on a formula simplification. DAG size of input: 1272 DAG size of output: 1270 [2019-10-07 14:55:08,421 WARN L191 SmtUtils]: Spent 942.00 ms on a formula simplification that was a NOOP. DAG size: 1270 [2019-10-07 14:55:08,661 WARN L191 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 623 [2019-10-07 14:55:09,610 WARN L191 SmtUtils]: Spent 946.00 ms on a formula simplification that was a NOOP. DAG size: 1270 [2019-10-07 14:55:10,562 WARN L191 SmtUtils]: Spent 949.00 ms on a formula simplification that was a NOOP. DAG size: 1270 [2019-10-07 14:55:11,511 WARN L191 SmtUtils]: Spent 945.00 ms on a formula simplification that was a NOOP. DAG size: 1270 [2019-10-07 14:55:11,746 WARN L191 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 623 [2019-10-07 14:55:12,693 WARN L191 SmtUtils]: Spent 946.00 ms on a formula simplification that was a NOOP. DAG size: 1270 [2019-10-07 14:55:13,678 WARN L191 SmtUtils]: Spent 956.00 ms on a formula simplification that was a NOOP. DAG size: 1274 [2019-10-07 14:55:14,634 WARN L191 SmtUtils]: Spent 952.00 ms on a formula simplification that was a NOOP. DAG size: 1274 [2019-10-07 14:55:14,875 WARN L191 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 626 [2019-10-07 14:55:15,846 WARN L191 SmtUtils]: Spent 968.00 ms on a formula simplification that was a NOOP. DAG size: 1274 [2019-10-07 14:55:17,510 WARN L191 SmtUtils]: Spent 1.65 s on a formula simplification. DAG size of input: 1276 DAG size of output: 1272 [2019-10-07 14:55:18,463 WARN L191 SmtUtils]: Spent 950.00 ms on a formula simplification that was a NOOP. DAG size: 1272 [2019-10-07 14:55:18,704 WARN L191 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 626 [2019-10-07 14:55:19,658 WARN L191 SmtUtils]: Spent 951.00 ms on a formula simplification that was a NOOP. DAG size: 1274 [2019-10-07 14:55:21,308 WARN L191 SmtUtils]: Spent 1.65 s on a formula simplification. DAG size of input: 1276 DAG size of output: 1272 [2019-10-07 14:55:22,263 WARN L191 SmtUtils]: Spent 950.00 ms on a formula simplification that was a NOOP. DAG size: 1272 [2019-10-07 14:55:22,496 WARN L191 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 626 [2019-10-07 14:55:23,457 WARN L191 SmtUtils]: Spent 959.00 ms on a formula simplification that was a NOOP. DAG size: 1274 [2019-10-07 14:55:25,212 WARN L191 SmtUtils]: Spent 1.75 s on a formula simplification. DAG size of input: 1281 DAG size of output: 1274 [2019-10-07 14:55:26,180 WARN L191 SmtUtils]: Spent 964.00 ms on a formula simplification that was a NOOP. DAG size: 1274 [2019-10-07 14:55:26,445 WARN L191 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 626 [2019-10-07 14:55:27,397 WARN L191 SmtUtils]: Spent 950.00 ms on a formula simplification that was a NOOP. DAG size: 1274 [2019-10-07 14:55:29,148 WARN L191 SmtUtils]: Spent 1.74 s on a formula simplification. DAG size of input: 1283 DAG size of output: 1276 [2019-10-07 14:55:30,102 WARN L191 SmtUtils]: Spent 950.00 ms on a formula simplification that was a NOOP. DAG size: 1276 [2019-10-07 14:55:30,343 WARN L191 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 626 [2019-10-07 14:55:31,304 WARN L191 SmtUtils]: Spent 959.00 ms on a formula simplification that was a NOOP. DAG size: 1276 [2019-10-07 14:55:31,571 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:55:31,572 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 14:55:31,579 INFO L168 Benchmark]: Toolchain (without parser) took 200375.59 ms. Allocated memory was 137.4 MB in the beginning and 957.9 MB in the end (delta: 820.5 MB). Free memory was 99.1 MB in the beginning and 249.8 MB in the end (delta: -150.7 MB). Peak memory consumption was 669.8 MB. Max. memory is 7.1 GB. [2019-10-07 14:55:31,580 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 137.4 MB. Free memory was 120.6 MB in the beginning and 120.4 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2019-10-07 14:55:31,580 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1094.10 ms. Allocated memory was 137.4 MB in the beginning and 201.9 MB in the end (delta: 64.5 MB). Free memory was 98.9 MB in the beginning and 137.5 MB in the end (delta: -38.6 MB). Peak memory consumption was 33.6 MB. Max. memory is 7.1 GB. [2019-10-07 14:55:31,581 INFO L168 Benchmark]: Boogie Preprocessor took 178.05 ms. Allocated memory is still 201.9 MB. Free memory was 137.5 MB in the beginning and 128.3 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 7.1 GB. [2019-10-07 14:55:31,582 INFO L168 Benchmark]: RCFGBuilder took 5049.88 ms. Allocated memory was 201.9 MB in the beginning and 305.1 MB in the end (delta: 103.3 MB). Free memory was 128.3 MB in the beginning and 105.2 MB in the end (delta: 23.1 MB). Peak memory consumption was 126.4 MB. Max. memory is 7.1 GB. [2019-10-07 14:55:31,583 INFO L168 Benchmark]: TraceAbstraction took 194048.48 ms. Allocated memory was 305.1 MB in the beginning and 957.9 MB in the end (delta: 652.7 MB). Free memory was 101.9 MB in the beginning and 266.9 MB in the end (delta: -165.0 MB). Peak memory consumption was 487.8 MB. Max. memory is 7.1 GB. [2019-10-07 14:55:31,589 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 137.4 MB. Free memory was 120.6 MB in the beginning and 120.4 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1094.10 ms. Allocated memory was 137.4 MB in the beginning and 201.9 MB in the end (delta: 64.5 MB). Free memory was 98.9 MB in the beginning and 137.5 MB in the end (delta: -38.6 MB). Peak memory consumption was 33.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 178.05 ms. Allocated memory is still 201.9 MB. Free memory was 137.5 MB in the beginning and 128.3 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 5049.88 ms. Allocated memory was 201.9 MB in the beginning and 305.1 MB in the end (delta: 103.3 MB). Free memory was 128.3 MB in the beginning and 105.2 MB in the end (delta: 23.1 MB). Peak memory consumption was 126.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 194048.48 ms. Allocated memory was 305.1 MB in the beginning and 957.9 MB in the end (delta: 652.7 MB). Free memory was 101.9 MB in the beginning and 266.9 MB in the end (delta: -165.0 MB). Peak memory consumption was 487.8 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...