java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --traceabstraction.trace.refinement.strategy SIFA_TAIPAN --sifa.abstract.domain CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/product-lines/email_spec27_product19.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-36ac518-m [2019-10-07 14:48:00,916 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-07 14:48:00,918 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-07 14:48:00,936 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-07 14:48:00,936 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-07 14:48:00,938 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-07 14:48:00,940 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-07 14:48:00,949 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-07 14:48:00,953 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-07 14:48:00,956 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-07 14:48:00,958 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-07 14:48:00,959 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-07 14:48:00,959 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-07 14:48:00,960 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-07 14:48:00,962 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-07 14:48:00,963 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-07 14:48:00,963 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-07 14:48:00,964 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-07 14:48:00,965 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-07 14:48:00,967 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-07 14:48:00,968 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-07 14:48:00,969 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-07 14:48:00,970 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-07 14:48:00,971 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-07 14:48:00,972 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-07 14:48:00,973 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-07 14:48:00,973 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-07 14:48:00,974 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-07 14:48:00,974 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-07 14:48:00,975 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-07 14:48:00,975 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-07 14:48:00,976 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-07 14:48:00,976 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-07 14:48:00,977 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-07 14:48:00,978 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-07 14:48:00,978 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-07 14:48:00,979 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-07 14:48:00,979 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-07 14:48:00,979 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-07 14:48:00,980 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-07 14:48:00,980 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-07 14:48:00,981 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 14:48:00,997 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-07 14:48:00,997 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-07 14:48:00,998 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-07 14:48:00,998 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-07 14:48:00,998 INFO L138 SettingsManager]: * Use SBE=true [2019-10-07 14:48:00,999 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-07 14:48:00,999 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-07 14:48:00,999 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-07 14:48:00,999 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-07 14:48:00,999 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-07 14:48:01,000 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-07 14:48:01,000 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-07 14:48:01,000 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-07 14:48:01,000 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-07 14:48:01,000 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-07 14:48:01,001 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-07 14:48:01,001 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-07 14:48:01,001 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-07 14:48:01,001 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-07 14:48:01,001 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-07 14:48:01,002 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-07 14:48:01,002 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 14:48:01,002 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-07 14:48:01,002 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-07 14:48:01,002 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-07 14:48:01,003 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-07 14:48:01,003 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-07 14:48:01,003 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-07 14:48:01,003 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 14:48:01,278 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-07 14:48:01,296 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-07 14:48:01,300 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-07 14:48:01,301 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-07 14:48:01,301 INFO L275 PluginConnector]: CDTParser initialized [2019-10-07 14:48:01,302 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec27_product19.cil.c [2019-10-07 14:48:01,363 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d30ab22be/1746a089e3c6424b928f65a693b38752/FLAG9d17647bd [2019-10-07 14:48:01,967 INFO L306 CDTParser]: Found 1 translation units. [2019-10-07 14:48:01,968 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec27_product19.cil.c [2019-10-07 14:48:01,990 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d30ab22be/1746a089e3c6424b928f65a693b38752/FLAG9d17647bd [2019-10-07 14:48:02,222 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d30ab22be/1746a089e3c6424b928f65a693b38752 [2019-10-07 14:48:02,232 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-07 14:48:02,233 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-07 14:48:02,234 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-07 14:48:02,234 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-07 14:48:02,237 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-07 14:48:02,238 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 02:48:02" (1/1) ... [2019-10-07 14:48:02,240 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@174a7eba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:48:02, skipping insertion in model container [2019-10-07 14:48:02,240 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 02:48:02" (1/1) ... [2019-10-07 14:48:02,246 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-07 14:48:02,326 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-07 14:48:03,020 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 14:48:03,037 INFO L188 MainTranslator]: Completed pre-run [2019-10-07 14:48:03,156 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 14:48:03,249 INFO L192 MainTranslator]: Completed translation [2019-10-07 14:48:03,249 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:48:03 WrapperNode [2019-10-07 14:48:03,250 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-07 14:48:03,250 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-07 14:48:03,250 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-07 14:48:03,251 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-07 14:48:03,263 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:48:03" (1/1) ... [2019-10-07 14:48:03,264 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:48:03" (1/1) ... [2019-10-07 14:48:03,302 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:48:03" (1/1) ... [2019-10-07 14:48:03,302 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:48:03" (1/1) ... [2019-10-07 14:48:03,366 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:48:03" (1/1) ... [2019-10-07 14:48:03,392 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:48:03" (1/1) ... [2019-10-07 14:48:03,418 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:48:03" (1/1) ... [2019-10-07 14:48:03,434 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-07 14:48:03,435 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-07 14:48:03,435 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-07 14:48:03,435 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-07 14:48:03,436 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:48:03" (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 14:48:03,520 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-07 14:48:03,520 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-07 14:48:03,520 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-07 14:48:03,521 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-07 14:48:03,521 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-07 14:48:03,521 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-07 14:48:03,521 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-07 14:48:03,522 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-07 14:48:03,522 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-07 14:48:03,522 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__VerifyForward_spec__1 [2019-10-07 14:48:03,522 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-07 14:48:03,522 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-07 14:48:03,523 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-07 14:48:03,523 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-07 14:48:03,524 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-07 14:48:03,524 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-07 14:48:03,524 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-07 14:48:03,524 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-07 14:48:03,525 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-07 14:48:03,525 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-07 14:48:03,525 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-07 14:48:03,525 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-07 14:48:03,526 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-07 14:48:03,526 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-07 14:48:03,526 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-07 14:48:03,526 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-07 14:48:03,527 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-07 14:48:03,527 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-07 14:48:03,527 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-07 14:48:03,527 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-07 14:48:03,528 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-07 14:48:03,528 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-07 14:48:03,528 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-07 14:48:03,529 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-10-07 14:48:03,529 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-07 14:48:03,529 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-07 14:48:03,529 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-07 14:48:03,529 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Forward [2019-10-07 14:48:03,530 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-07 14:48:03,530 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-07 14:48:03,530 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-07 14:48:03,530 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-07 14:48:03,531 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-07 14:48:03,531 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-07 14:48:03,531 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-07 14:48:03,531 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-07 14:48:03,532 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-07 14:48:03,532 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-07 14:48:03,532 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-07 14:48:03,532 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-07 14:48:03,532 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-07 14:48:03,532 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-07 14:48:03,533 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-07 14:48:03,533 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-07 14:48:03,533 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-07 14:48:03,533 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-07 14:48:03,533 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-07 14:48:03,534 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-07 14:48:03,534 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-07 14:48:03,534 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-07 14:48:03,534 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-07 14:48:03,534 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-07 14:48:03,534 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-07 14:48:03,535 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-07 14:48:03,535 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-07 14:48:03,535 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-07 14:48:03,535 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-07 14:48:03,535 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-07 14:48:03,536 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-07 14:48:03,536 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-07 14:48:03,536 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-07 14:48:03,536 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-07 14:48:03,536 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-07 14:48:03,537 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-07 14:48:03,537 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-07 14:48:03,537 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-07 14:48:03,537 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-07 14:48:03,537 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-07 14:48:03,537 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-07 14:48:03,538 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-07 14:48:03,538 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-07 14:48:03,538 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-07 14:48:03,538 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-07 14:48:03,538 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-07 14:48:03,539 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-07 14:48:03,539 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-07 14:48:03,539 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-07 14:48:03,539 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-07 14:48:03,539 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-07 14:48:03,539 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-07 14:48:03,540 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-07 14:48:03,540 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-07 14:48:03,540 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-07 14:48:03,540 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-07 14:48:03,540 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-07 14:48:03,541 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-07 14:48:03,541 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-07 14:48:03,541 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-10-07 14:48:03,541 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Forward [2019-10-07 14:48:03,541 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-07 14:48:03,541 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-07 14:48:03,542 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-07 14:48:03,542 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-07 14:48:03,542 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-07 14:48:03,542 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-07 14:48:03,542 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-07 14:48:03,542 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-07 14:48:03,543 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-07 14:48:03,543 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-07 14:48:03,543 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-10-07 14:48:03,543 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-07 14:48:03,543 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-07 14:48:03,543 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-07 14:48:03,544 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-07 14:48:03,544 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-07 14:48:03,544 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-07 14:48:03,544 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-07 14:48:03,544 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-07 14:48:03,544 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-07 14:48:03,545 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-07 14:48:03,545 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-07 14:48:03,545 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-07 14:48:03,545 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-07 14:48:03,545 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-07 14:48:03,546 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-07 14:48:03,546 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-07 14:48:03,546 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-07 14:48:03,546 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-07 14:48:03,546 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-07 14:48:03,546 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-07 14:48:03,546 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-07 14:48:03,547 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-07 14:48:03,547 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-07 14:48:03,547 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-07 14:48:03,547 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-07 14:48:03,547 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__VerifyForward_spec__1 [2019-10-07 14:48:03,547 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-07 14:48:03,548 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-07 14:48:03,548 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-07 14:48:03,548 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-07 14:48:03,548 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-07 14:48:03,548 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-07 14:48:03,548 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-07 14:48:03,548 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-07 14:48:03,549 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-07 14:48:03,549 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-07 14:48:03,549 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-07 14:48:03,549 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-07 14:48:03,549 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-07 14:48:03,549 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-07 14:48:03,549 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-07 14:48:03,550 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-07 14:48:03,550 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-07 14:48:03,550 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-07 14:48:03,550 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-07 14:48:03,550 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-07 14:48:03,550 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-07 14:48:03,550 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-07 14:48:03,551 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-07 14:48:03,551 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-07 14:48:03,551 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-07 14:48:03,551 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-07 14:48:03,551 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-07 14:48:03,551 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-07 14:48:03,551 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-07 14:48:03,551 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-07 14:48:03,552 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-07 14:48:03,552 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-07 14:48:03,552 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-07 14:48:03,552 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-07 14:48:03,552 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-07 14:48:03,552 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-07 14:48:03,552 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-10-07 14:48:03,552 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-07 14:48:03,553 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-07 14:48:03,553 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-07 14:48:03,553 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-07 14:48:03,553 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-07 14:48:03,553 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-07 14:48:03,553 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-07 14:48:03,553 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-07 14:48:03,553 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-07 14:48:03,554 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-07 14:48:03,554 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-07 14:48:03,554 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-07 14:48:03,554 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-07 14:48:03,554 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-07 14:48:03,554 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Forward [2019-10-07 14:48:03,554 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-07 14:48:03,554 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-07 14:48:03,555 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-07 14:48:03,555 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-07 14:48:03,555 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-07 14:48:03,555 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-07 14:48:03,555 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-07 14:48:03,555 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-07 14:48:03,555 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-07 14:48:03,555 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-07 14:48:03,556 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-07 14:48:03,556 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-07 14:48:03,556 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-07 14:48:03,556 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-07 14:48:03,556 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-07 14:48:03,556 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-07 14:48:03,556 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-07 14:48:03,556 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-07 14:48:03,557 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-07 14:48:03,557 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-07 14:48:03,557 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-07 14:48:03,557 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-07 14:48:03,557 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-07 14:48:03,557 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-07 14:48:03,557 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-07 14:48:03,558 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-07 14:48:03,558 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-07 14:48:03,558 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-07 14:48:03,558 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-07 14:48:03,558 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-07 14:48:03,558 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-07 14:48:03,558 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-07 14:48:03,559 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-07 14:48:03,559 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-07 14:48:03,559 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-07 14:48:03,559 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-07 14:48:03,559 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-07 14:48:03,559 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-07 14:48:03,559 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-07 14:48:03,559 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-07 14:48:03,560 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-07 14:48:03,560 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-10-07 14:48:03,560 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-07 14:48:03,560 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-07 14:48:03,560 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-10-07 14:48:03,560 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Forward [2019-10-07 14:48:03,560 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-07 14:48:03,560 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-07 14:48:03,561 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-07 14:48:07,744 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-07 14:48:07,744 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-07 14:48:07,746 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 02:48:07 BoogieIcfgContainer [2019-10-07 14:48:07,746 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-07 14:48:07,747 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-07 14:48:07,748 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-07 14:48:07,752 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-07 14:48:07,752 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.10 02:48:02" (1/3) ... [2019-10-07 14:48:07,753 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9376d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 02:48:07, skipping insertion in model container [2019-10-07 14:48:07,753 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:48:03" (2/3) ... [2019-10-07 14:48:07,754 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9376d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 02:48:07, skipping insertion in model container [2019-10-07 14:48:07,754 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 02:48:07" (3/3) ... [2019-10-07 14:48:07,757 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec27_product19.cil.c [2019-10-07 14:48:07,766 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-07 14:48:07,777 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-07 14:48:07,788 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-07 14:48:07,831 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-07 14:48:07,831 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-07 14:48:07,831 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-07 14:48:07,831 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-07 14:48:07,832 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-07 14:48:07,832 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-07 14:48:07,832 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-07 14:48:07,832 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-07 14:48:07,861 INFO L276 IsEmpty]: Start isEmpty. Operand 361 states. [2019-10-07 14:48:07,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2019-10-07 14:48:07,880 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:48:07,882 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, 1] [2019-10-07 14:48:07,884 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:48:07,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:48:07,889 INFO L82 PathProgramCache]: Analyzing trace with hash 1868884875, now seen corresponding path program 1 times [2019-10-07 14:48:07,899 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:48:07,899 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:48:07,943 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:48:07,943 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:48:07,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:48:08,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:48:08,578 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 14:48:08,579 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:48:08,580 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:48:08,580 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-07 14:48:08,587 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-07 14:48:08,599 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-07 14:48:08,600 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-07 14:48:08,602 INFO L87 Difference]: Start difference. First operand 361 states. Second operand 2 states. [2019-10-07 14:48:08,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:48:08,662 INFO L93 Difference]: Finished difference Result 530 states and 623 transitions. [2019-10-07 14:48:08,663 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-07 14:48:08,664 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 143 [2019-10-07 14:48:08,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:48:08,682 INFO L225 Difference]: With dead ends: 530 [2019-10-07 14:48:08,683 INFO L226 Difference]: Without dead ends: 340 [2019-10-07 14:48:08,689 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 14:48:08,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2019-10-07 14:48:08,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 340. [2019-10-07 14:48:08,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 340 states. [2019-10-07 14:48:08,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 340 states and 398 transitions. [2019-10-07 14:48:08,769 INFO L78 Accepts]: Start accepts. Automaton has 340 states and 398 transitions. Word has length 143 [2019-10-07 14:48:08,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:48:08,772 INFO L462 AbstractCegarLoop]: Abstraction has 340 states and 398 transitions. [2019-10-07 14:48:08,772 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-07 14:48:08,772 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states and 398 transitions. [2019-10-07 14:48:08,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2019-10-07 14:48:08,777 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:48:08,778 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, 1, 1] [2019-10-07 14:48:08,778 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:48:08,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:48:08,778 INFO L82 PathProgramCache]: Analyzing trace with hash 2087298503, now seen corresponding path program 1 times [2019-10-07 14:48:08,779 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:48:08,779 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:48:08,779 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:48:08,779 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:48:08,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:48:08,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:48:08,959 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 14:48:08,959 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:48:08,959 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:48:08,959 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 14:48:08,961 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 14:48:08,962 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 14:48:08,962 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 14:48:08,962 INFO L87 Difference]: Start difference. First operand 340 states and 398 transitions. Second operand 3 states. [2019-10-07 14:48:09,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:48:09,005 INFO L93 Difference]: Finished difference Result 515 states and 591 transitions. [2019-10-07 14:48:09,005 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 14:48:09,005 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 144 [2019-10-07 14:48:09,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:48:09,013 INFO L225 Difference]: With dead ends: 515 [2019-10-07 14:48:09,013 INFO L226 Difference]: Without dead ends: 342 [2019-10-07 14:48:09,017 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 14:48:09,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 342 states. [2019-10-07 14:48:09,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 342 to 342. [2019-10-07 14:48:09,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 342 states. [2019-10-07 14:48:09,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342 states to 342 states and 400 transitions. [2019-10-07 14:48:09,075 INFO L78 Accepts]: Start accepts. Automaton has 342 states and 400 transitions. Word has length 144 [2019-10-07 14:48:09,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:48:09,078 INFO L462 AbstractCegarLoop]: Abstraction has 342 states and 400 transitions. [2019-10-07 14:48:09,078 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 14:48:09,078 INFO L276 IsEmpty]: Start isEmpty. Operand 342 states and 400 transitions. [2019-10-07 14:48:09,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2019-10-07 14:48:09,084 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:48:09,084 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] [2019-10-07 14:48:09,084 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:48:09,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:48:09,085 INFO L82 PathProgramCache]: Analyzing trace with hash -1934840532, now seen corresponding path program 1 times [2019-10-07 14:48:09,085 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:48:09,085 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:48:09,086 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:48:09,087 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:48:09,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:48:09,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:48:09,334 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 14:48:09,334 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:48:09,335 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:48:09,335 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 14:48:09,336 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 14:48:09,336 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 14:48:09,337 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 14:48:09,337 INFO L87 Difference]: Start difference. First operand 342 states and 400 transitions. Second operand 3 states. [2019-10-07 14:48:09,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:48:09,410 INFO L93 Difference]: Finished difference Result 666 states and 807 transitions. [2019-10-07 14:48:09,411 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 14:48:09,411 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 149 [2019-10-07 14:48:09,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:48:09,420 INFO L225 Difference]: With dead ends: 666 [2019-10-07 14:48:09,421 INFO L226 Difference]: Without dead ends: 382 [2019-10-07 14:48:09,424 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 14:48:09,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 382 states. [2019-10-07 14:48:09,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 382 to 381. [2019-10-07 14:48:09,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 381 states. [2019-10-07 14:48:09,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 468 transitions. [2019-10-07 14:48:09,467 INFO L78 Accepts]: Start accepts. Automaton has 381 states and 468 transitions. Word has length 149 [2019-10-07 14:48:09,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:48:09,468 INFO L462 AbstractCegarLoop]: Abstraction has 381 states and 468 transitions. [2019-10-07 14:48:09,468 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 14:48:09,468 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 468 transitions. [2019-10-07 14:48:09,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2019-10-07 14:48:09,480 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:48:09,480 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] [2019-10-07 14:48:09,481 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:48:09,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:48:09,481 INFO L82 PathProgramCache]: Analyzing trace with hash -188162591, now seen corresponding path program 1 times [2019-10-07 14:48:09,482 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:48:09,482 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:48:09,482 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:48:09,482 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:48:09,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:48:09,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:48:09,851 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 14:48:09,852 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:48:09,852 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:48:09,852 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-07 14:48:09,856 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-07 14:48:09,858 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-07 14:48:09,858 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-07 14:48:09,859 INFO L87 Difference]: Start difference. First operand 381 states and 468 transitions. Second operand 8 states. [2019-10-07 14:48:09,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:48:09,937 INFO L93 Difference]: Finished difference Result 542 states and 648 transitions. [2019-10-07 14:48:09,937 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-07 14:48:09,937 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 150 [2019-10-07 14:48:09,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:48:09,944 INFO L225 Difference]: With dead ends: 542 [2019-10-07 14:48:09,944 INFO L226 Difference]: Without dead ends: 381 [2019-10-07 14:48:09,947 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-07 14:48:09,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 381 states. [2019-10-07 14:48:09,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 381 to 381. [2019-10-07 14:48:09,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 381 states. [2019-10-07 14:48:09,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 467 transitions. [2019-10-07 14:48:09,969 INFO L78 Accepts]: Start accepts. Automaton has 381 states and 467 transitions. Word has length 150 [2019-10-07 14:48:09,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:48:09,970 INFO L462 AbstractCegarLoop]: Abstraction has 381 states and 467 transitions. [2019-10-07 14:48:09,970 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-07 14:48:09,970 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 467 transitions. [2019-10-07 14:48:09,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2019-10-07 14:48:09,973 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:48:09,973 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, 1] [2019-10-07 14:48:09,973 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:48:09,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:48:09,974 INFO L82 PathProgramCache]: Analyzing trace with hash 2130876534, now seen corresponding path program 1 times [2019-10-07 14:48:09,974 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:48:09,974 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:48:09,974 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:48:09,974 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:48:09,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:48:10,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:48:10,753 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 14:48:10,754 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:48:10,754 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:48:10,754 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2019-10-07 14:48:10,755 INFO L442 AbstractCegarLoop]: Interpolant automaton has 27 states [2019-10-07 14:48:10,756 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2019-10-07 14:48:10,757 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=633, Unknown=0, NotChecked=0, Total=702 [2019-10-07 14:48:10,757 INFO L87 Difference]: Start difference. First operand 381 states and 467 transitions. Second operand 27 states. [2019-10-07 14:48:19,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:48:19,223 INFO L93 Difference]: Finished difference Result 763 states and 903 transitions. [2019-10-07 14:48:19,224 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2019-10-07 14:48:19,224 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 155 [2019-10-07 14:48:19,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:48:19,228 INFO L225 Difference]: With dead ends: 763 [2019-10-07 14:48:19,228 INFO L226 Difference]: Without dead ends: 571 [2019-10-07 14:48:19,230 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 413 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=255, Invalid=2607, Unknown=0, NotChecked=0, Total=2862 [2019-10-07 14:48:19,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 571 states. [2019-10-07 14:48:19,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 571 to 564. [2019-10-07 14:48:19,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 564 states. [2019-10-07 14:48:19,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 564 states to 564 states and 671 transitions. [2019-10-07 14:48:19,264 INFO L78 Accepts]: Start accepts. Automaton has 564 states and 671 transitions. Word has length 155 [2019-10-07 14:48:19,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:48:19,265 INFO L462 AbstractCegarLoop]: Abstraction has 564 states and 671 transitions. [2019-10-07 14:48:19,265 INFO L463 AbstractCegarLoop]: Interpolant automaton has 27 states. [2019-10-07 14:48:19,265 INFO L276 IsEmpty]: Start isEmpty. Operand 564 states and 671 transitions. [2019-10-07 14:48:19,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2019-10-07 14:48:19,268 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:48:19,268 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:48:19,269 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:48:19,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:48:19,269 INFO L82 PathProgramCache]: Analyzing trace with hash -1706585510, now seen corresponding path program 1 times [2019-10-07 14:48:19,269 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:48:19,269 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:48:19,270 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:48:19,270 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:48:19,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:48:19,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:48:19,716 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-10-07 14:48:19,716 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:48:19,716 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:48:19,717 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2019-10-07 14:48:19,717 INFO L442 AbstractCegarLoop]: Interpolant automaton has 21 states [2019-10-07 14:48:19,717 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2019-10-07 14:48:19,718 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=371, Unknown=0, NotChecked=0, Total=420 [2019-10-07 14:48:19,718 INFO L87 Difference]: Start difference. First operand 564 states and 671 transitions. Second operand 21 states. [2019-10-07 14:48:26,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:48:26,801 INFO L93 Difference]: Finished difference Result 1168 states and 1331 transitions. [2019-10-07 14:48:26,804 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2019-10-07 14:48:26,804 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 176 [2019-10-07 14:48:26,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:48:26,810 INFO L225 Difference]: With dead ends: 1168 [2019-10-07 14:48:26,810 INFO L226 Difference]: Without dead ends: 780 [2019-10-07 14:48:26,812 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 316 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=213, Invalid=1679, Unknown=0, NotChecked=0, Total=1892 [2019-10-07 14:48:26,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 780 states. [2019-10-07 14:48:26,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 780 to 763. [2019-10-07 14:48:26,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 763 states. [2019-10-07 14:48:26,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 763 states to 763 states and 890 transitions. [2019-10-07 14:48:26,915 INFO L78 Accepts]: Start accepts. Automaton has 763 states and 890 transitions. Word has length 176 [2019-10-07 14:48:26,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:48:26,918 INFO L462 AbstractCegarLoop]: Abstraction has 763 states and 890 transitions. [2019-10-07 14:48:26,918 INFO L463 AbstractCegarLoop]: Interpolant automaton has 21 states. [2019-10-07 14:48:26,918 INFO L276 IsEmpty]: Start isEmpty. Operand 763 states and 890 transitions. [2019-10-07 14:48:26,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2019-10-07 14:48:26,921 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:48:26,921 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:48:26,922 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:48:26,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:48:26,922 INFO L82 PathProgramCache]: Analyzing trace with hash -225793300, now seen corresponding path program 1 times [2019-10-07 14:48:26,922 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:48:26,923 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:48:26,923 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:48:26,923 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:48:26,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:48:27,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:48:27,996 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2019-10-07 14:48:27,996 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:48:27,996 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:48:27,997 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 14:48:28,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:48:28,519 INFO L256 TraceCheckSpWp]: Trace formula consists of 2610 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-07 14:48:28,536 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:48:28,714 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-07 14:48:28,714 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:48:28,971 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-07 14:48:28,971 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2019-10-07 14:48:29,001 INFO L162 IcfgInterpreter]: Started Sifa with 167 locations of interest [2019-10-07 14:48:29,001 INFO L169 IcfgInterpreter]: Building call graph [2019-10-07 14:48:29,008 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-07 14:48:29,014 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-07 14:48:29,015 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-07 14:49:01,487 WARN L191 SmtUtils]: Spent 354.00 ms on a formula simplification that was a NOOP. DAG size: 652 [2019-10-07 14:49:04,962 WARN L191 SmtUtils]: Spent 1.10 s on a formula simplification. DAG size of input: 284 DAG size of output: 231 [2019-10-07 14:49:05,364 WARN L191 SmtUtils]: Spent 394.00 ms on a formula simplification that was a NOOP. DAG size: 688 [2019-10-07 14:49:05,662 WARN L191 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 688 [2019-10-07 14:49:05,920 WARN L191 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 688 [2019-10-07 14:49:06,126 WARN L191 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 438 [2019-10-07 14:49:06,757 WARN L191 SmtUtils]: Spent 629.00 ms on a formula simplification that was a NOOP. DAG size: 978 [2019-10-07 14:49:07,391 WARN L191 SmtUtils]: Spent 613.00 ms on a formula simplification that was a NOOP. DAG size: 978 [2019-10-07 14:49:08,009 WARN L191 SmtUtils]: Spent 615.00 ms on a formula simplification that was a NOOP. DAG size: 978 [2019-10-07 14:49:08,153 WARN L191 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 438 [2019-10-07 14:49:08,707 WARN L191 SmtUtils]: Spent 553.00 ms on a formula simplification that was a NOOP. DAG size: 978 [2019-10-07 14:49:09,917 WARN L191 SmtUtils]: Spent 1.18 s on a formula simplification. DAG size of input: 980 DAG size of output: 978 [2019-10-07 14:49:10,478 WARN L191 SmtUtils]: Spent 557.00 ms on a formula simplification that was a NOOP. DAG size: 978 [2019-10-07 14:49:10,630 WARN L191 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 438 [2019-10-07 14:49:11,195 WARN L191 SmtUtils]: Spent 563.00 ms on a formula simplification that was a NOOP. DAG size: 978 [2019-10-07 14:49:11,756 WARN L191 SmtUtils]: Spent 557.00 ms on a formula simplification that was a NOOP. DAG size: 978 [2019-10-07 14:49:12,340 WARN L191 SmtUtils]: Spent 581.00 ms on a formula simplification that was a NOOP. DAG size: 978 [2019-10-07 14:49:12,521 WARN L191 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 438 [2019-10-07 14:49:13,112 WARN L191 SmtUtils]: Spent 588.00 ms on a formula simplification that was a NOOP. DAG size: 978 [2019-10-07 14:49:13,135 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 541 for LOIs [2019-10-07 14:49:13,538 WARN L191 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 621 [2019-10-07 14:49:13,685 WARN L191 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 621 [2019-10-07 14:49:13,838 WARN L191 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 438 [2019-10-07 14:49:14,262 WARN L191 SmtUtils]: Spent 422.00 ms on a formula simplification that was a NOOP. DAG size: 911 [2019-10-07 14:49:14,263 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 1018 for LOIs [2019-10-07 14:49:14,855 WARN L191 SmtUtils]: Spent 590.00 ms on a formula simplification that was a NOOP. DAG size: 1018 [2019-10-07 14:49:15,400 WARN L191 SmtUtils]: Spent 541.00 ms on a formula simplification that was a NOOP. DAG size: 1018 [2019-10-07 14:49:15,593 WARN L191 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-07 14:49:16,381 WARN L191 SmtUtils]: Spent 786.00 ms on a formula simplification that was a NOOP. DAG size: 1138 [2019-10-07 14:49:16,946 WARN L191 SmtUtils]: Spent 551.00 ms on a formula simplification that was a NOOP. DAG size: 1018 [2019-10-07 14:49:17,535 WARN L191 SmtUtils]: Spent 585.00 ms on a formula simplification that was a NOOP. DAG size: 1018 [2019-10-07 14:49:17,730 WARN L191 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-07 14:49:18,495 WARN L191 SmtUtils]: Spent 763.00 ms on a formula simplification that was a NOOP. DAG size: 1138 [2019-10-07 14:49:19,086 WARN L191 SmtUtils]: Spent 542.00 ms on a formula simplification that was a NOOP. DAG size: 1018 [2019-10-07 14:49:19,629 WARN L191 SmtUtils]: Spent 539.00 ms on a formula simplification that was a NOOP. DAG size: 1018 [2019-10-07 14:49:19,856 WARN L191 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-07 14:49:20,662 WARN L191 SmtUtils]: Spent 804.00 ms on a formula simplification that was a NOOP. DAG size: 1138 [2019-10-07 14:49:21,659 WARN L191 SmtUtils]: Spent 970.00 ms on a formula simplification. DAG size of input: 1140 DAG size of output: 1018 [2019-10-07 14:49:22,203 WARN L191 SmtUtils]: Spent 540.00 ms on a formula simplification that was a NOOP. DAG size: 1018 [2019-10-07 14:49:22,723 WARN L191 SmtUtils]: Spent 504.00 ms on a formula simplification. DAG size of input: 560 DAG size of output: 558 [2019-10-07 14:49:23,506 WARN L191 SmtUtils]: Spent 781.00 ms on a formula simplification that was a NOOP. DAG size: 1138 [2019-10-07 14:49:24,050 WARN L191 SmtUtils]: Spent 528.00 ms on a formula simplification that was a NOOP. DAG size: 1018 [2019-10-07 14:49:24,582 WARN L191 SmtUtils]: Spent 530.00 ms on a formula simplification that was a NOOP. DAG size: 1018 [2019-10-07 14:49:24,765 WARN L191 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-07 14:49:25,515 WARN L191 SmtUtils]: Spent 748.00 ms on a formula simplification that was a NOOP. DAG size: 1138 [2019-10-07 14:49:26,052 WARN L191 SmtUtils]: Spent 534.00 ms on a formula simplification that was a NOOP. DAG size: 1018 [2019-10-07 14:49:26,606 WARN L191 SmtUtils]: Spent 551.00 ms on a formula simplification that was a NOOP. DAG size: 1018 [2019-10-07 14:49:26,789 WARN L191 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-07 14:49:27,551 WARN L191 SmtUtils]: Spent 760.00 ms on a formula simplification that was a NOOP. DAG size: 1138 [2019-10-07 14:49:28,086 WARN L191 SmtUtils]: Spent 532.00 ms on a formula simplification that was a NOOP. DAG size: 1018 [2019-10-07 14:49:28,619 WARN L191 SmtUtils]: Spent 530.00 ms on a formula simplification that was a NOOP. DAG size: 1018 [2019-10-07 14:49:28,801 WARN L191 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-07 14:49:29,568 WARN L191 SmtUtils]: Spent 765.00 ms on a formula simplification that was a NOOP. DAG size: 1138 [2019-10-07 14:49:30,123 WARN L191 SmtUtils]: Spent 553.00 ms on a formula simplification that was a NOOP. DAG size: 1018 [2019-10-07 14:49:30,662 WARN L191 SmtUtils]: Spent 535.00 ms on a formula simplification that was a NOOP. DAG size: 1018 [2019-10-07 14:49:30,847 WARN L191 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-07 14:49:31,609 WARN L191 SmtUtils]: Spent 760.00 ms on a formula simplification that was a NOOP. DAG size: 1138 [2019-10-07 14:49:32,153 WARN L191 SmtUtils]: Spent 541.00 ms on a formula simplification that was a NOOP. DAG size: 1018 [2019-10-07 14:49:32,689 WARN L191 SmtUtils]: Spent 533.00 ms on a formula simplification that was a NOOP. DAG size: 1018 [2019-10-07 14:49:32,872 WARN L191 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-07 14:49:33,651 WARN L191 SmtUtils]: Spent 777.00 ms on a formula simplification that was a NOOP. DAG size: 1138 [2019-10-07 14:49:34,186 WARN L191 SmtUtils]: Spent 532.00 ms on a formula simplification that was a NOOP. DAG size: 1018 [2019-10-07 14:49:34,718 WARN L191 SmtUtils]: Spent 529.00 ms on a formula simplification that was a NOOP. DAG size: 1018 [2019-10-07 14:49:34,899 WARN L191 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-07 14:49:35,654 WARN L191 SmtUtils]: Spent 752.00 ms on a formula simplification that was a NOOP. DAG size: 1138 [2019-10-07 14:49:36,188 WARN L191 SmtUtils]: Spent 531.00 ms on a formula simplification that was a NOOP. DAG size: 1018 [2019-10-07 14:49:36,719 WARN L191 SmtUtils]: Spent 527.00 ms on a formula simplification that was a NOOP. DAG size: 1018 [2019-10-07 14:49:36,911 WARN L191 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-07 14:49:37,676 WARN L191 SmtUtils]: Spent 763.00 ms on a formula simplification that was a NOOP. DAG size: 1138 [2019-10-07 14:49:38,210 WARN L191 SmtUtils]: Spent 531.00 ms on a formula simplification that was a NOOP. DAG size: 1018 [2019-10-07 14:49:38,749 WARN L191 SmtUtils]: Spent 536.00 ms on a formula simplification that was a NOOP. DAG size: 1018 [2019-10-07 14:49:38,935 WARN L191 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-07 14:49:39,694 WARN L191 SmtUtils]: Spent 757.00 ms on a formula simplification that was a NOOP. DAG size: 1138 [2019-10-07 14:49:40,229 WARN L191 SmtUtils]: Spent 531.00 ms on a formula simplification that was a NOOP. DAG size: 1018 [2019-10-07 14:49:40,770 WARN L191 SmtUtils]: Spent 538.00 ms on a formula simplification that was a NOOP. DAG size: 1018 [2019-10-07 14:49:40,952 WARN L191 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-07 14:49:41,710 WARN L191 SmtUtils]: Spent 756.00 ms on a formula simplification that was a NOOP. DAG size: 1138 [2019-10-07 14:49:42,536 WARN L191 SmtUtils]: Spent 780.00 ms on a formula simplification that was a NOOP. DAG size: 1138 [2019-10-07 14:49:43,292 WARN L191 SmtUtils]: Spent 753.00 ms on a formula simplification that was a NOOP. DAG size: 1138 [2019-10-07 14:49:43,495 WARN L191 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-07 14:49:44,252 WARN L191 SmtUtils]: Spent 756.00 ms on a formula simplification that was a NOOP. DAG size: 1138 [2019-10-07 14:49:45,641 WARN L191 SmtUtils]: Spent 1.38 s on a formula simplification. DAG size of input: 1140 DAG size of output: 1138 [2019-10-07 14:49:46,388 WARN L191 SmtUtils]: Spent 744.00 ms on a formula simplification that was a NOOP. DAG size: 1138 [2019-10-07 14:49:46,580 WARN L191 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-07 14:49:47,336 WARN L191 SmtUtils]: Spent 754.00 ms on a formula simplification that was a NOOP. DAG size: 1138 [2019-10-07 14:49:48,091 WARN L191 SmtUtils]: Spent 751.00 ms on a formula simplification that was a NOOP. DAG size: 1138 [2019-10-07 14:49:48,842 WARN L191 SmtUtils]: Spent 748.00 ms on a formula simplification that was a NOOP. DAG size: 1138 [2019-10-07 14:49:49,025 WARN L191 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-07 14:49:49,783 WARN L191 SmtUtils]: Spent 756.00 ms on a formula simplification that was a NOOP. DAG size: 1138 [2019-10-07 14:49:50,702 WARN L191 SmtUtils]: Spent 883.00 ms on a formula simplification that was a NOOP. DAG size: 1142 [2019-10-07 14:49:51,476 WARN L191 SmtUtils]: Spent 769.00 ms on a formula simplification that was a NOOP. DAG size: 1142 [2019-10-07 14:49:51,665 WARN L191 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 561 [2019-10-07 14:49:52,421 WARN L191 SmtUtils]: Spent 755.00 ms on a formula simplification that was a NOOP. DAG size: 1142 [2019-10-07 14:49:53,850 WARN L191 SmtUtils]: Spent 1.41 s on a formula simplification. DAG size of input: 1144 DAG size of output: 1142 [2019-10-07 14:49:54,605 WARN L191 SmtUtils]: Spent 752.00 ms on a formula simplification that was a NOOP. DAG size: 1142 [2019-10-07 14:49:54,799 WARN L191 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 561 [2019-10-07 14:49:55,556 WARN L191 SmtUtils]: Spent 754.00 ms on a formula simplification that was a NOOP. DAG size: 1142 [2019-10-07 14:49:56,930 WARN L191 SmtUtils]: Spent 1.37 s on a formula simplification. DAG size of input: 1144 DAG size of output: 1142 [2019-10-07 14:49:57,695 WARN L191 SmtUtils]: Spent 761.00 ms on a formula simplification that was a NOOP. DAG size: 1142 [2019-10-07 14:49:57,876 WARN L191 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 561 [2019-10-07 14:49:58,635 WARN L191 SmtUtils]: Spent 757.00 ms on a formula simplification that was a NOOP. DAG size: 1142 [2019-10-07 14:49:59,403 WARN L191 SmtUtils]: Spent 759.00 ms on a formula simplification that was a NOOP. DAG size: 1140 [2019-10-07 14:50:00,159 WARN L191 SmtUtils]: Spent 752.00 ms on a formula simplification that was a NOOP. DAG size: 1140 [2019-10-07 14:50:00,347 WARN L191 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 561 [2019-10-07 14:50:01,107 WARN L191 SmtUtils]: Spent 758.00 ms on a formula simplification that was a NOOP. DAG size: 1142 [2019-10-07 14:50:01,876 WARN L191 SmtUtils]: Spent 766.00 ms on a formula simplification that was a NOOP. DAG size: 1142 [2019-10-07 14:50:02,637 WARN L191 SmtUtils]: Spent 758.00 ms on a formula simplification that was a NOOP. DAG size: 1142 [2019-10-07 14:50:02,836 WARN L191 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 561 [2019-10-07 14:50:03,603 WARN L191 SmtUtils]: Spent 764.00 ms on a formula simplification that was a NOOP. DAG size: 1144 [2019-10-07 14:50:05,176 WARN L191 SmtUtils]: Spent 1.53 s on a formula simplification. DAG size of input: 1140 DAG size of output: 1138 [2019-10-07 14:50:05,927 WARN L191 SmtUtils]: Spent 748.00 ms on a formula simplification that was a NOOP. DAG size: 1138 [2019-10-07 14:50:06,126 WARN L191 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-07 14:50:06,877 WARN L191 SmtUtils]: Spent 749.00 ms on a formula simplification that was a NOOP. DAG size: 1138 [2019-10-07 14:50:08,303 WARN L191 SmtUtils]: Spent 1.41 s on a formula simplification. DAG size of input: 1140 DAG size of output: 1138 [2019-10-07 14:50:09,057 WARN L191 SmtUtils]: Spent 751.00 ms on a formula simplification that was a NOOP. DAG size: 1138 [2019-10-07 14:50:09,253 WARN L191 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-07 14:50:09,999 WARN L191 SmtUtils]: Spent 743.00 ms on a formula simplification that was a NOOP. DAG size: 1138 [2019-10-07 14:50:10,747 WARN L191 SmtUtils]: Spent 745.00 ms on a formula simplification that was a NOOP. DAG size: 1138 [2019-10-07 14:50:11,502 WARN L191 SmtUtils]: Spent 752.00 ms on a formula simplification that was a NOOP. DAG size: 1138 [2019-10-07 14:50:11,680 WARN L191 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-07 14:50:12,433 WARN L191 SmtUtils]: Spent 750.00 ms on a formula simplification that was a NOOP. DAG size: 1138 [2019-10-07 14:50:14,055 WARN L191 SmtUtils]: Spent 1.58 s on a formula simplification. DAG size of input: 1140 DAG size of output: 1138 [2019-10-07 14:50:14,816 WARN L191 SmtUtils]: Spent 757.00 ms on a formula simplification that was a NOOP. DAG size: 1138 [2019-10-07 14:50:15,002 WARN L191 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-07 14:50:15,750 WARN L191 SmtUtils]: Spent 746.00 ms on a formula simplification that was a NOOP. DAG size: 1138 [2019-10-07 14:50:17,430 WARN L191 SmtUtils]: Spent 1.67 s on a formula simplification. DAG size of input: 1140 DAG size of output: 1138 [2019-10-07 14:50:18,192 WARN L191 SmtUtils]: Spent 758.00 ms on a formula simplification that was a NOOP. DAG size: 1138 [2019-10-07 14:50:18,382 WARN L191 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-07 14:50:19,140 WARN L191 SmtUtils]: Spent 756.00 ms on a formula simplification that was a NOOP. DAG size: 1138 [2019-10-07 14:50:19,891 WARN L191 SmtUtils]: Spent 749.00 ms on a formula simplification that was a NOOP. DAG size: 1138 [2019-10-07 14:50:20,639 WARN L191 SmtUtils]: Spent 744.00 ms on a formula simplification that was a NOOP. DAG size: 1138 [2019-10-07 14:50:20,824 WARN L191 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-07 14:50:21,571 WARN L191 SmtUtils]: Spent 745.00 ms on a formula simplification that was a NOOP. DAG size: 1138 [2019-10-07 14:50:22,952 WARN L191 SmtUtils]: Spent 1.35 s on a formula simplification. DAG size of input: 1144 DAG size of output: 1142 [2019-10-07 14:50:23,720 WARN L191 SmtUtils]: Spent 765.00 ms on a formula simplification that was a NOOP. DAG size: 1142 [2019-10-07 14:50:23,910 WARN L191 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 561 [2019-10-07 14:50:24,666 WARN L191 SmtUtils]: Spent 754.00 ms on a formula simplification that was a NOOP. DAG size: 1142 [2019-10-07 14:50:25,965 WARN L191 SmtUtils]: Spent 1.29 s on a formula simplification. DAG size of input: 1144 DAG size of output: 1140 [2019-10-07 14:50:26,721 WARN L191 SmtUtils]: Spent 752.00 ms on a formula simplification that was a NOOP. DAG size: 1140 [2019-10-07 14:50:26,913 WARN L191 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 561 [2019-10-07 14:50:27,669 WARN L191 SmtUtils]: Spent 754.00 ms on a formula simplification that was a NOOP. DAG size: 1142 [2019-10-07 14:50:28,963 WARN L191 SmtUtils]: Spent 1.29 s on a formula simplification. DAG size of input: 1144 DAG size of output: 1140 [2019-10-07 14:50:29,722 WARN L191 SmtUtils]: Spent 754.00 ms on a formula simplification that was a NOOP. DAG size: 1140 [2019-10-07 14:50:29,904 WARN L191 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 561 [2019-10-07 14:50:30,658 WARN L191 SmtUtils]: Spent 752.00 ms on a formula simplification that was a NOOP. DAG size: 1142 [2019-10-07 14:50:31,944 WARN L191 SmtUtils]: Spent 1.28 s on a formula simplification. DAG size of input: 1149 DAG size of output: 1142 [2019-10-07 14:50:32,716 WARN L191 SmtUtils]: Spent 768.00 ms on a formula simplification that was a NOOP. DAG size: 1142 [2019-10-07 14:50:32,932 WARN L191 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 561 [2019-10-07 14:50:33,715 WARN L191 SmtUtils]: Spent 782.00 ms on a formula simplification that was a NOOP. DAG size: 1142 [2019-10-07 14:50:35,091 WARN L191 SmtUtils]: Spent 1.37 s on a formula simplification. DAG size of input: 1151 DAG size of output: 1144 [2019-10-07 14:50:35,853 WARN L191 SmtUtils]: Spent 758.00 ms on a formula simplification that was a NOOP. DAG size: 1144 [2019-10-07 14:50:36,039 WARN L191 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 561 [2019-10-07 14:50:36,800 WARN L191 SmtUtils]: Spent 758.00 ms on a formula simplification that was a NOOP. DAG size: 1144 [2019-10-07 14:50:37,054 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:50:37,056 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.generateProof(TraceAbstractionRefinementEngine.java:177) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.executeStrategy(TraceAbstractionRefinementEngine.java:167) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.RefinementEngineFactory.runRefinementEngine(RefinementEngineFactory.java:133) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:436) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:419) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:368) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:332) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:170) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:122) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) Caused by: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε at de.uni_freiburg.informatik.ultimate.lib.sifa.PriorityWorklist.add(PriorityWorklist.java:97) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.lambda$2(DagInterpreter.java:135) at java.lang.Iterable.forEach(Iterable.java:75) at java.util.Collections$UnmodifiableCollection.forEach(Collections.java:1080) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:135) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:104) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.computeTopSummary(TopInputCallSummarizer.java:78) at java.util.HashMap.computeIfAbsent(HashMap.java:1127) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.summarize(TopInputCallSummarizer.java:67) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretCallReturnSummary(DagInterpreter.java:230) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:214) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:197) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:166) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:130) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:104) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.computeTopSummary(TopInputCallSummarizer.java:78) at java.util.HashMap.computeIfAbsent(HashMap.java:1127) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.summarize(TopInputCallSummarizer.java:67) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretCallReturnSummary(DagInterpreter.java:230) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:214) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:197) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:166) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:130) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:104) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.computeTopSummary(TopInputCallSummarizer.java:78) at java.util.HashMap.computeIfAbsent(HashMap.java:1127) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.summarize(TopInputCallSummarizer.java:67) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretCallReturnSummary(DagInterpreter.java:230) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:214) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:197) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:166) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:130) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpretLoisInProcedure(IcfgInterpreter.java:139) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpret(IcfgInterpreter.java:129) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:99) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:99) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:287) ... 21 more [2019-10-07 14:50:37,062 INFO L168 Benchmark]: Toolchain (without parser) took 154829.24 ms. Allocated memory was 138.9 MB in the beginning and 652.2 MB in the end (delta: 513.3 MB). Free memory was 100.8 MB in the beginning and 77.8 MB in the end (delta: 23.0 MB). Peak memory consumption was 536.3 MB. Max. memory is 7.1 GB. [2019-10-07 14:50:37,063 INFO L168 Benchmark]: CDTParser took 1.26 ms. Allocated memory is still 138.9 MB. Free memory was 122.2 MB in the beginning and 122.0 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2019-10-07 14:50:37,064 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1015.82 ms. Allocated memory was 138.9 MB in the beginning and 202.9 MB in the end (delta: 64.0 MB). Free memory was 100.5 MB in the beginning and 139.7 MB in the end (delta: -39.2 MB). Peak memory consumption was 33.1 MB. Max. memory is 7.1 GB. [2019-10-07 14:50:37,064 INFO L168 Benchmark]: Boogie Preprocessor took 184.41 ms. Allocated memory is still 202.9 MB. Free memory was 139.7 MB in the beginning and 130.8 MB in the end (delta: 8.9 MB). Peak memory consumption was 8.9 MB. Max. memory is 7.1 GB. [2019-10-07 14:50:37,065 INFO L168 Benchmark]: RCFGBuilder took 4311.32 ms. Allocated memory was 202.9 MB in the beginning and 292.6 MB in the end (delta: 89.7 MB). Free memory was 130.8 MB in the beginning and 89.0 MB in the end (delta: 41.8 MB). Peak memory consumption was 131.5 MB. Max. memory is 7.1 GB. [2019-10-07 14:50:37,066 INFO L168 Benchmark]: TraceAbstraction took 149313.30 ms. Allocated memory was 292.6 MB in the beginning and 652.2 MB in the end (delta: 359.7 MB). Free memory was 89.0 MB in the beginning and 77.8 MB in the end (delta: 11.2 MB). Peak memory consumption was 370.9 MB. Max. memory is 7.1 GB. [2019-10-07 14:50:37,069 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.26 ms. Allocated memory is still 138.9 MB. Free memory was 122.2 MB in the beginning and 122.0 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1015.82 ms. Allocated memory was 138.9 MB in the beginning and 202.9 MB in the end (delta: 64.0 MB). Free memory was 100.5 MB in the beginning and 139.7 MB in the end (delta: -39.2 MB). Peak memory consumption was 33.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 184.41 ms. Allocated memory is still 202.9 MB. Free memory was 139.7 MB in the beginning and 130.8 MB in the end (delta: 8.9 MB). Peak memory consumption was 8.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 4311.32 ms. Allocated memory was 202.9 MB in the beginning and 292.6 MB in the end (delta: 89.7 MB). Free memory was 130.8 MB in the beginning and 89.0 MB in the end (delta: 41.8 MB). Peak memory consumption was 131.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 149313.30 ms. Allocated memory was 292.6 MB in the beginning and 652.2 MB in the end (delta: 359.7 MB). Free memory was 89.0 MB in the beginning and 77.8 MB in the end (delta: 11.2 MB). Peak memory consumption was 370.9 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...