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_spec9_product20.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-36ac518-m [2019-10-07 15:10:25,193 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-07 15:10:25,195 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-07 15:10:25,206 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-07 15:10:25,206 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-07 15:10:25,207 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-07 15:10:25,209 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-07 15:10:25,211 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-07 15:10:25,212 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-07 15:10:25,213 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-07 15:10:25,214 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-07 15:10:25,215 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-07 15:10:25,215 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-07 15:10:25,216 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-07 15:10:25,217 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-07 15:10:25,218 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-07 15:10:25,219 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-07 15:10:25,220 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-07 15:10:25,222 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-07 15:10:25,224 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-07 15:10:25,226 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-07 15:10:25,227 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-07 15:10:25,228 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-07 15:10:25,231 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-07 15:10:25,238 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-07 15:10:25,239 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-07 15:10:25,239 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-07 15:10:25,240 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-07 15:10:25,240 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-07 15:10:25,244 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-07 15:10:25,244 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-07 15:10:25,245 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-07 15:10:25,245 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-07 15:10:25,248 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-07 15:10:25,250 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-07 15:10:25,250 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-07 15:10:25,250 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-07 15:10:25,251 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-07 15:10:25,251 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-07 15:10:25,255 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-07 15:10:25,255 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-07 15:10:25,260 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 15:10:25,279 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-07 15:10:25,279 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-07 15:10:25,280 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-07 15:10:25,281 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-07 15:10:25,281 INFO L138 SettingsManager]: * Use SBE=true [2019-10-07 15:10:25,281 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-07 15:10:25,281 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-07 15:10:25,282 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-07 15:10:25,282 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-07 15:10:25,282 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-07 15:10:25,282 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-07 15:10:25,282 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-07 15:10:25,283 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-07 15:10:25,283 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-07 15:10:25,283 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-07 15:10:25,283 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-07 15:10:25,283 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-07 15:10:25,284 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-07 15:10:25,284 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-07 15:10:25,284 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-07 15:10:25,284 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-07 15:10:25,285 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 15:10:25,285 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-07 15:10:25,285 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-07 15:10:25,285 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-07 15:10:25,286 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-07 15:10:25,286 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-07 15:10:25,286 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-07 15:10:25,286 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 15:10:25,631 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-07 15:10:25,651 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-07 15:10:25,657 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-07 15:10:25,659 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-07 15:10:25,659 INFO L275 PluginConnector]: CDTParser initialized [2019-10-07 15:10:25,660 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec9_product20.cil.c [2019-10-07 15:10:25,733 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dc1f6913c/9aa0bfdc5eb84a6ba0d5f334e5797452/FLAGac0b2930a [2019-10-07 15:10:26,421 INFO L306 CDTParser]: Found 1 translation units. [2019-10-07 15:10:26,424 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec9_product20.cil.c [2019-10-07 15:10:26,451 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dc1f6913c/9aa0bfdc5eb84a6ba0d5f334e5797452/FLAGac0b2930a [2019-10-07 15:10:26,549 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dc1f6913c/9aa0bfdc5eb84a6ba0d5f334e5797452 [2019-10-07 15:10:26,558 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-07 15:10:26,560 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-07 15:10:26,561 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-07 15:10:26,561 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-07 15:10:26,564 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-07 15:10:26,565 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 03:10:26" (1/1) ... [2019-10-07 15:10:26,568 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7cc444e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:10:26, skipping insertion in model container [2019-10-07 15:10:26,569 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 03:10:26" (1/1) ... [2019-10-07 15:10:26,576 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-07 15:10:26,661 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-07 15:10:27,359 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 15:10:27,382 INFO L188 MainTranslator]: Completed pre-run [2019-10-07 15:10:27,595 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 15:10:27,715 INFO L192 MainTranslator]: Completed translation [2019-10-07 15:10:27,716 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:10:27 WrapperNode [2019-10-07 15:10:27,716 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-07 15:10:27,717 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-07 15:10:27,717 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-07 15:10:27,717 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-07 15:10:27,734 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:10:27" (1/1) ... [2019-10-07 15:10:27,735 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:10:27" (1/1) ... [2019-10-07 15:10:27,769 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:10:27" (1/1) ... [2019-10-07 15:10:27,769 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:10:27" (1/1) ... [2019-10-07 15:10:27,858 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:10:27" (1/1) ... [2019-10-07 15:10:27,889 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:10:27" (1/1) ... [2019-10-07 15:10:27,902 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:10:27" (1/1) ... [2019-10-07 15:10:27,918 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-07 15:10:27,919 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-07 15:10:27,919 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-07 15:10:27,920 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-07 15:10:27,921 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:10:27" (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 15:10:28,005 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-07 15:10:28,006 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-07 15:10:28,006 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-07 15:10:28,006 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-07 15:10:28,007 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-07 15:10:28,008 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-07 15:10:28,009 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-07 15:10:28,009 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-07 15:10:28,010 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-07 15:10:28,010 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-07 15:10:28,010 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-07 15:10:28,012 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-07 15:10:28,012 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-07 15:10:28,012 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-07 15:10:28,013 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-07 15:10:28,013 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-07 15:10:28,016 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-07 15:10:28,016 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-07 15:10:28,016 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-07 15:10:28,017 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-07 15:10:28,017 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-07 15:10:28,018 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-07 15:10:28,018 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-07 15:10:28,018 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-07 15:10:28,018 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-07 15:10:28,019 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-07 15:10:28,019 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-10-07 15:10:28,019 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-10-07 15:10:28,020 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptForward_spec__1 [2019-10-07 15:10:28,020 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptForward_spec__2 [2019-10-07 15:10:28,020 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-07 15:10:28,021 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-07 15:10:28,021 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-07 15:10:28,021 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-07 15:10:28,022 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-07 15:10:28,022 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-07 15:10:28,022 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-07 15:10:28,022 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-07 15:10:28,023 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-07 15:10:28,023 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-07 15:10:28,024 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-07 15:10:28,024 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-07 15:10:28,024 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-07 15:10:28,024 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-07 15:10:28,025 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-07 15:10:28,025 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-07 15:10:28,025 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-07 15:10:28,025 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-07 15:10:28,026 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-07 15:10:28,026 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-07 15:10:28,026 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-07 15:10:28,026 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-07 15:10:28,027 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-07 15:10:28,027 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-07 15:10:28,027 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-07 15:10:28,027 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-07 15:10:28,028 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-07 15:10:28,028 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-07 15:10:28,028 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-07 15:10:28,029 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-07 15:10:28,029 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-07 15:10:28,029 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-07 15:10:28,029 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-07 15:10:28,030 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-07 15:10:28,030 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-07 15:10:28,030 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-07 15:10:28,030 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-07 15:10:28,030 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-07 15:10:28,031 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-07 15:10:28,031 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-07 15:10:28,031 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-07 15:10:28,031 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-07 15:10:28,031 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-07 15:10:28,032 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2019-10-07 15:10:28,032 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-07 15:10:28,033 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-07 15:10:28,034 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Encrypt [2019-10-07 15:10:28,034 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__AddressBook [2019-10-07 15:10:28,034 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-07 15:10:28,034 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-07 15:10:28,035 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-07 15:10:28,036 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-07 15:10:28,036 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-07 15:10:28,037 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-07 15:10:28,037 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-07 15:10:28,037 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-07 15:10:28,038 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-07 15:10:28,039 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-10-07 15:10:28,039 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-10-07 15:10:28,039 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-07 15:10:28,039 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-07 15:10:28,040 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-07 15:10:28,040 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-07 15:10:28,040 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-07 15:10:28,040 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-07 15:10:28,041 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-07 15:10:28,041 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-07 15:10:28,041 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-07 15:10:28,041 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-07 15:10:28,042 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-07 15:10:28,042 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-07 15:10:28,042 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-07 15:10:28,042 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-07 15:10:28,043 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-07 15:10:28,043 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-07 15:10:28,043 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-07 15:10:28,043 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-07 15:10:28,044 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-07 15:10:28,044 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-07 15:10:28,044 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-07 15:10:28,044 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-07 15:10:28,044 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-07 15:10:28,045 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-07 15:10:28,045 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-07 15:10:28,045 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-07 15:10:28,045 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-07 15:10:28,046 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-07 15:10:28,046 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-07 15:10:28,047 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-07 15:10:28,047 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-07 15:10:28,047 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-07 15:10:28,048 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-07 15:10:28,048 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-07 15:10:28,048 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-07 15:10:28,049 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-07 15:10:28,049 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-07 15:10:28,050 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-07 15:10:28,050 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-07 15:10:28,050 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-07 15:10:28,050 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-07 15:10:28,051 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-07 15:10:28,051 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-07 15:10:28,052 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-07 15:10:28,053 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-07 15:10:28,056 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-07 15:10:28,056 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-07 15:10:28,057 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-07 15:10:28,057 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-07 15:10:28,058 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-07 15:10:28,058 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-07 15:10:28,058 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-07 15:10:28,058 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-07 15:10:28,059 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-07 15:10:28,059 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-07 15:10:28,062 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-07 15:10:28,063 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-07 15:10:28,063 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-07 15:10:28,063 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-07 15:10:28,063 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-07 15:10:28,063 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-07 15:10:28,063 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-07 15:10:28,063 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-07 15:10:28,064 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-07 15:10:28,064 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-07 15:10:28,064 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-07 15:10:28,064 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-10-07 15:10:28,064 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-10-07 15:10:28,064 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-07 15:10:28,064 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-07 15:10:28,065 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-07 15:10:28,065 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-07 15:10:28,065 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-07 15:10:28,065 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-07 15:10:28,066 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptForward_spec__1 [2019-10-07 15:10:28,066 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptForward_spec__2 [2019-10-07 15:10:28,067 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-07 15:10:28,067 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-07 15:10:28,067 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-07 15:10:28,067 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-07 15:10:28,067 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-07 15:10:28,067 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-07 15:10:28,067 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-07 15:10:28,068 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-07 15:10:28,068 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-07 15:10:28,068 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-07 15:10:28,068 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-07 15:10:28,068 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-07 15:10:28,068 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-07 15:10:28,068 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-07 15:10:28,069 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-07 15:10:28,069 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-07 15:10:28,069 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-07 15:10:28,069 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-07 15:10:28,069 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-07 15:10:28,069 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-07 15:10:28,069 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-07 15:10:28,069 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-07 15:10:28,070 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-07 15:10:28,070 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-07 15:10:28,070 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-07 15:10:28,070 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-07 15:10:28,070 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-07 15:10:28,070 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-07 15:10:28,070 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-07 15:10:28,070 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-07 15:10:28,071 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-07 15:10:28,071 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-07 15:10:28,071 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-07 15:10:28,071 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-07 15:10:28,071 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-07 15:10:28,071 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-07 15:10:28,072 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-07 15:10:28,072 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-07 15:10:28,072 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-07 15:10:28,072 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-07 15:10:28,073 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-07 15:10:28,073 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-07 15:10:28,073 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-07 15:10:28,073 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-07 15:10:28,073 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-07 15:10:28,074 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-07 15:10:28,074 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-07 15:10:28,074 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-07 15:10:28,074 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-07 15:10:28,074 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-07 15:10:28,075 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-07 15:10:28,075 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-07 15:10:28,075 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-07 15:10:28,075 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-07 15:10:28,075 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-10-07 15:10:28,076 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-10-07 15:10:28,076 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-07 15:10:28,076 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2019-10-07 15:10:28,076 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Encrypt [2019-10-07 15:10:28,077 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__AddressBook [2019-10-07 15:10:28,077 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-07 15:10:28,077 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-07 15:10:28,077 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-07 15:10:28,077 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-07 15:10:28,078 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-07 15:10:28,078 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-07 15:10:28,078 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-07 15:10:28,078 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-07 15:10:28,078 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-07 15:10:28,079 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-07 15:10:28,079 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-07 15:10:28,079 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-07 15:10:28,079 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-07 15:10:28,079 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-07 15:10:28,080 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-07 15:10:28,080 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-07 15:10:32,521 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-07 15:10:32,522 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-07 15:10:32,523 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 03:10:32 BoogieIcfgContainer [2019-10-07 15:10:32,524 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-07 15:10:32,525 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-07 15:10:32,525 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-07 15:10:32,528 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-07 15:10:32,529 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.10 03:10:26" (1/3) ... [2019-10-07 15:10:32,530 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6bab8664 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 03:10:32, skipping insertion in model container [2019-10-07 15:10:32,530 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:10:27" (2/3) ... [2019-10-07 15:10:32,530 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6bab8664 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 03:10:32, skipping insertion in model container [2019-10-07 15:10:32,530 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 03:10:32" (3/3) ... [2019-10-07 15:10:32,532 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec9_product20.cil.c [2019-10-07 15:10:32,543 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-07 15:10:32,553 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-07 15:10:32,566 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-07 15:10:32,598 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-07 15:10:32,599 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-07 15:10:32,599 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-07 15:10:32,599 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-07 15:10:32,599 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-07 15:10:32,599 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-07 15:10:32,599 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-07 15:10:32,600 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-07 15:10:32,641 INFO L276 IsEmpty]: Start isEmpty. Operand 389 states. [2019-10-07 15:10:32,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2019-10-07 15:10:32,676 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:10:32,678 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] [2019-10-07 15:10:32,681 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:10:32,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:10:32,688 INFO L82 PathProgramCache]: Analyzing trace with hash -1053414408, now seen corresponding path program 1 times [2019-10-07 15:10:32,701 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:10:32,701 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:10:32,702 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:10:32,702 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:10:32,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:10:33,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:10:33,478 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 15:10:33,479 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:10:33,480 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:10:33,480 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-07 15:10:33,487 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-07 15:10:33,501 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-07 15:10:33,502 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-07 15:10:33,504 INFO L87 Difference]: Start difference. First operand 389 states. Second operand 2 states. [2019-10-07 15:10:33,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:10:33,601 INFO L93 Difference]: Finished difference Result 518 states and 617 transitions. [2019-10-07 15:10:33,601 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-07 15:10:33,604 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 121 [2019-10-07 15:10:33,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:10:33,639 INFO L225 Difference]: With dead ends: 518 [2019-10-07 15:10:33,639 INFO L226 Difference]: Without dead ends: 341 [2019-10-07 15:10:33,652 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 15:10:33,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 341 states. [2019-10-07 15:10:33,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 341 to 341. [2019-10-07 15:10:33,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 341 states. [2019-10-07 15:10:33,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 403 transitions. [2019-10-07 15:10:33,756 INFO L78 Accepts]: Start accepts. Automaton has 341 states and 403 transitions. Word has length 121 [2019-10-07 15:10:33,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:10:33,758 INFO L462 AbstractCegarLoop]: Abstraction has 341 states and 403 transitions. [2019-10-07 15:10:33,758 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-07 15:10:33,758 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 403 transitions. [2019-10-07 15:10:33,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2019-10-07 15:10:33,762 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:10:33,762 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] [2019-10-07 15:10:33,763 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:10:33,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:10:33,763 INFO L82 PathProgramCache]: Analyzing trace with hash 1628387505, now seen corresponding path program 1 times [2019-10-07 15:10:33,763 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:10:33,763 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:10:33,764 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:10:33,764 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:10:33,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:10:33,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:10:34,013 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 15:10:34,015 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:10:34,015 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:10:34,015 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 15:10:34,019 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 15:10:34,020 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 15:10:34,020 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:10:34,020 INFO L87 Difference]: Start difference. First operand 341 states and 403 transitions. Second operand 3 states. [2019-10-07 15:10:34,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:10:34,079 INFO L93 Difference]: Finished difference Result 503 states and 586 transitions. [2019-10-07 15:10:34,081 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 15:10:34,081 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 122 [2019-10-07 15:10:34,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:10:34,088 INFO L225 Difference]: With dead ends: 503 [2019-10-07 15:10:34,088 INFO L226 Difference]: Without dead ends: 343 [2019-10-07 15:10:34,093 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 15:10:34,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 343 states. [2019-10-07 15:10:34,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 343 to 343. [2019-10-07 15:10:34,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 343 states. [2019-10-07 15:10:34,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 343 states to 343 states and 405 transitions. [2019-10-07 15:10:34,143 INFO L78 Accepts]: Start accepts. Automaton has 343 states and 405 transitions. Word has length 122 [2019-10-07 15:10:34,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:10:34,144 INFO L462 AbstractCegarLoop]: Abstraction has 343 states and 405 transitions. [2019-10-07 15:10:34,144 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 15:10:34,145 INFO L276 IsEmpty]: Start isEmpty. Operand 343 states and 405 transitions. [2019-10-07 15:10:34,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2019-10-07 15:10:34,147 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:10:34,147 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] [2019-10-07 15:10:34,148 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:10:34,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:10:34,148 INFO L82 PathProgramCache]: Analyzing trace with hash 471512363, now seen corresponding path program 1 times [2019-10-07 15:10:34,148 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:10:34,148 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:10:34,149 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:10:34,149 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:10:34,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:10:34,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:10:34,344 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 15:10:34,344 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:10:34,345 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:10:34,345 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 15:10:34,345 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 15:10:34,346 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 15:10:34,346 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:10:34,346 INFO L87 Difference]: Start difference. First operand 343 states and 405 transitions. Second operand 3 states. [2019-10-07 15:10:34,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:10:34,384 INFO L93 Difference]: Finished difference Result 670 states and 820 transitions. [2019-10-07 15:10:34,385 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 15:10:34,385 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 131 [2019-10-07 15:10:34,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:10:34,388 INFO L225 Difference]: With dead ends: 670 [2019-10-07 15:10:34,389 INFO L226 Difference]: Without dead ends: 385 [2019-10-07 15:10:34,390 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 15:10:34,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 385 states. [2019-10-07 15:10:34,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 385 to 384. [2019-10-07 15:10:34,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 384 states. [2019-10-07 15:10:34,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 384 states to 384 states and 476 transitions. [2019-10-07 15:10:34,413 INFO L78 Accepts]: Start accepts. Automaton has 384 states and 476 transitions. Word has length 131 [2019-10-07 15:10:34,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:10:34,414 INFO L462 AbstractCegarLoop]: Abstraction has 384 states and 476 transitions. [2019-10-07 15:10:34,414 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 15:10:34,414 INFO L276 IsEmpty]: Start isEmpty. Operand 384 states and 476 transitions. [2019-10-07 15:10:34,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2019-10-07 15:10:34,417 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:10:34,417 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] [2019-10-07 15:10:34,417 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:10:34,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:10:34,418 INFO L82 PathProgramCache]: Analyzing trace with hash 2129396188, now seen corresponding path program 1 times [2019-10-07 15:10:34,418 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:10:34,418 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:10:34,418 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:10:34,419 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:10:34,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:10:34,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:10:34,654 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 15:10:34,655 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:10:34,655 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:10:34,655 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 15:10:34,656 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 15:10:34,656 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 15:10:34,657 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:10:34,657 INFO L87 Difference]: Start difference. First operand 384 states and 476 transitions. Second operand 3 states. [2019-10-07 15:10:34,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:10:34,710 INFO L93 Difference]: Finished difference Result 790 states and 1028 transitions. [2019-10-07 15:10:34,711 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 15:10:34,712 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 132 [2019-10-07 15:10:34,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:10:34,717 INFO L225 Difference]: With dead ends: 790 [2019-10-07 15:10:34,717 INFO L226 Difference]: Without dead ends: 464 [2019-10-07 15:10:34,718 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 15:10:34,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 464 states. [2019-10-07 15:10:34,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 464 to 463. [2019-10-07 15:10:34,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 463 states. [2019-10-07 15:10:34,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 463 states to 463 states and 612 transitions. [2019-10-07 15:10:34,763 INFO L78 Accepts]: Start accepts. Automaton has 463 states and 612 transitions. Word has length 132 [2019-10-07 15:10:34,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:10:34,765 INFO L462 AbstractCegarLoop]: Abstraction has 463 states and 612 transitions. [2019-10-07 15:10:34,765 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 15:10:34,765 INFO L276 IsEmpty]: Start isEmpty. Operand 463 states and 612 transitions. [2019-10-07 15:10:34,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2019-10-07 15:10:34,777 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:10:34,777 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] [2019-10-07 15:10:34,778 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:10:34,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:10:34,778 INFO L82 PathProgramCache]: Analyzing trace with hash -1585933844, now seen corresponding path program 1 times [2019-10-07 15:10:34,779 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:10:34,779 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:10:34,779 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:10:34,780 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:10:34,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:10:34,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:10:35,105 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 15:10:35,105 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:10:35,106 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:10:35,106 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 15:10:35,108 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 15:10:35,108 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 15:10:35,108 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:10:35,109 INFO L87 Difference]: Start difference. First operand 463 states and 612 transitions. Second operand 3 states. [2019-10-07 15:10:35,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:10:35,180 INFO L93 Difference]: Finished difference Result 675 states and 859 transitions. [2019-10-07 15:10:35,181 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 15:10:35,181 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 135 [2019-10-07 15:10:35,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:10:35,190 INFO L225 Difference]: With dead ends: 675 [2019-10-07 15:10:35,190 INFO L226 Difference]: Without dead ends: 527 [2019-10-07 15:10:35,193 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 10 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 15:10:35,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 527 states. [2019-10-07 15:10:35,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 527 to 526. [2019-10-07 15:10:35,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 526 states. [2019-10-07 15:10:35,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 526 states to 526 states and 685 transitions. [2019-10-07 15:10:35,239 INFO L78 Accepts]: Start accepts. Automaton has 526 states and 685 transitions. Word has length 135 [2019-10-07 15:10:35,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:10:35,241 INFO L462 AbstractCegarLoop]: Abstraction has 526 states and 685 transitions. [2019-10-07 15:10:35,241 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 15:10:35,241 INFO L276 IsEmpty]: Start isEmpty. Operand 526 states and 685 transitions. [2019-10-07 15:10:35,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2019-10-07 15:10:35,247 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:10:35,247 INFO L385 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:10:35,247 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:10:35,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:10:35,248 INFO L82 PathProgramCache]: Analyzing trace with hash -529388687, now seen corresponding path program 1 times [2019-10-07 15:10:35,248 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:10:35,248 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:10:35,249 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:10:35,249 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:10:35,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:10:35,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:10:35,739 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2019-10-07 15:10:35,740 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:10:35,740 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:10:35,740 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-10-07 15:10:35,742 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-10-07 15:10:35,742 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-10-07 15:10:35,743 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2019-10-07 15:10:35,743 INFO L87 Difference]: Start difference. First operand 526 states and 685 transitions. Second operand 12 states. [2019-10-07 15:10:38,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:10:38,097 INFO L93 Difference]: Finished difference Result 1176 states and 1512 transitions. [2019-10-07 15:10:38,097 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-10-07 15:10:38,097 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 227 [2019-10-07 15:10:38,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:10:38,109 INFO L225 Difference]: With dead ends: 1176 [2019-10-07 15:10:38,110 INFO L226 Difference]: Without dead ends: 970 [2019-10-07 15:10:38,113 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=99, Invalid=363, Unknown=0, NotChecked=0, Total=462 [2019-10-07 15:10:38,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 970 states. [2019-10-07 15:10:38,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 970 to 959. [2019-10-07 15:10:38,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 959 states. [2019-10-07 15:10:38,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 959 states to 959 states and 1264 transitions. [2019-10-07 15:10:38,191 INFO L78 Accepts]: Start accepts. Automaton has 959 states and 1264 transitions. Word has length 227 [2019-10-07 15:10:38,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:10:38,193 INFO L462 AbstractCegarLoop]: Abstraction has 959 states and 1264 transitions. [2019-10-07 15:10:38,193 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-10-07 15:10:38,193 INFO L276 IsEmpty]: Start isEmpty. Operand 959 states and 1264 transitions. [2019-10-07 15:10:38,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2019-10-07 15:10:38,261 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:10:38,262 INFO L385 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:10:38,262 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:10:38,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:10:38,263 INFO L82 PathProgramCache]: Analyzing trace with hash -1327849714, now seen corresponding path program 1 times [2019-10-07 15:10:38,263 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:10:38,263 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:10:38,263 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:10:38,263 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:10:38,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:10:38,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:10:38,465 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2019-10-07 15:10:38,466 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:10:38,466 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:10:38,466 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 15:10:38,468 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 15:10:38,468 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 15:10:38,469 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:10:38,469 INFO L87 Difference]: Start difference. First operand 959 states and 1264 transitions. Second operand 3 states. [2019-10-07 15:10:38,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:10:38,540 INFO L93 Difference]: Finished difference Result 2158 states and 2983 transitions. [2019-10-07 15:10:38,541 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 15:10:38,541 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 243 [2019-10-07 15:10:38,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:10:38,552 INFO L225 Difference]: With dead ends: 2158 [2019-10-07 15:10:38,553 INFO L226 Difference]: Without dead ends: 1257 [2019-10-07 15:10:38,556 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 15:10:38,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1257 states. [2019-10-07 15:10:38,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1257 to 1255. [2019-10-07 15:10:38,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1255 states. [2019-10-07 15:10:38,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1255 states to 1255 states and 1772 transitions. [2019-10-07 15:10:38,649 INFO L78 Accepts]: Start accepts. Automaton has 1255 states and 1772 transitions. Word has length 243 [2019-10-07 15:10:38,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:10:38,650 INFO L462 AbstractCegarLoop]: Abstraction has 1255 states and 1772 transitions. [2019-10-07 15:10:38,650 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 15:10:38,650 INFO L276 IsEmpty]: Start isEmpty. Operand 1255 states and 1772 transitions. [2019-10-07 15:10:38,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2019-10-07 15:10:38,659 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:10:38,659 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:10:38,659 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:10:38,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:10:38,660 INFO L82 PathProgramCache]: Analyzing trace with hash -324152982, now seen corresponding path program 1 times [2019-10-07 15:10:38,660 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:10:38,660 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:10:38,661 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:10:38,661 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:10:38,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:10:38,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:10:39,025 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-10-07 15:10:39,026 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:10:39,026 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:10:39,026 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-10-07 15:10:39,027 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-07 15:10:39,027 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-07 15:10:39,028 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2019-10-07 15:10:39,028 INFO L87 Difference]: Start difference. First operand 1255 states and 1772 transitions. Second operand 11 states. [2019-10-07 15:10:42,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:10:42,133 INFO L93 Difference]: Finished difference Result 1808 states and 2403 transitions. [2019-10-07 15:10:42,134 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-07 15:10:42,134 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 229 [2019-10-07 15:10:42,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:10:42,148 INFO L225 Difference]: With dead ends: 1808 [2019-10-07 15:10:42,148 INFO L226 Difference]: Without dead ends: 1473 [2019-10-07 15:10:42,154 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=270, Unknown=0, NotChecked=0, Total=342 [2019-10-07 15:10:42,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1473 states. [2019-10-07 15:10:42,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1473 to 1462. [2019-10-07 15:10:42,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1462 states. [2019-10-07 15:10:42,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1462 states to 1462 states and 2010 transitions. [2019-10-07 15:10:42,281 INFO L78 Accepts]: Start accepts. Automaton has 1462 states and 2010 transitions. Word has length 229 [2019-10-07 15:10:42,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:10:42,282 INFO L462 AbstractCegarLoop]: Abstraction has 1462 states and 2010 transitions. [2019-10-07 15:10:42,282 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-07 15:10:42,282 INFO L276 IsEmpty]: Start isEmpty. Operand 1462 states and 2010 transitions. [2019-10-07 15:10:42,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2019-10-07 15:10:42,290 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:10:42,290 INFO L385 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:10:42,291 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:10:42,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:10:42,291 INFO L82 PathProgramCache]: Analyzing trace with hash -1127243137, now seen corresponding path program 1 times [2019-10-07 15:10:42,292 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:10:42,292 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:10:42,292 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:10:42,292 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:10:42,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:10:42,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:10:42,492 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2019-10-07 15:10:42,493 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:10:42,493 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:10:42,493 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 15:10:42,494 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 15:10:42,495 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 15:10:42,495 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:10:42,495 INFO L87 Difference]: Start difference. First operand 1462 states and 2010 transitions. Second operand 3 states. [2019-10-07 15:10:42,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:10:42,635 INFO L93 Difference]: Finished difference Result 3436 states and 4943 transitions. [2019-10-07 15:10:42,636 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 15:10:42,636 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 244 [2019-10-07 15:10:42,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:10:42,651 INFO L225 Difference]: With dead ends: 3436 [2019-10-07 15:10:42,651 INFO L226 Difference]: Without dead ends: 2032 [2019-10-07 15:10:42,657 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 15:10:42,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2032 states. [2019-10-07 15:10:42,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2032 to 2030. [2019-10-07 15:10:42,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2030 states. [2019-10-07 15:10:42,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2030 states to 2030 states and 2978 transitions. [2019-10-07 15:10:42,818 INFO L78 Accepts]: Start accepts. Automaton has 2030 states and 2978 transitions. Word has length 244 [2019-10-07 15:10:42,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:10:42,819 INFO L462 AbstractCegarLoop]: Abstraction has 2030 states and 2978 transitions. [2019-10-07 15:10:42,819 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 15:10:42,819 INFO L276 IsEmpty]: Start isEmpty. Operand 2030 states and 2978 transitions. [2019-10-07 15:10:42,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2019-10-07 15:10:42,835 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:10:42,835 INFO L385 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:10:42,836 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:10:42,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:10:42,837 INFO L82 PathProgramCache]: Analyzing trace with hash 626496206, now seen corresponding path program 1 times [2019-10-07 15:10:42,837 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:10:42,837 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:10:42,837 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:10:42,838 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:10:42,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:10:42,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:10:43,100 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2019-10-07 15:10:43,100 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:10:43,101 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:10:43,101 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 15:10:43,102 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 15:10:43,102 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 15:10:43,102 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:10:43,103 INFO L87 Difference]: Start difference. First operand 2030 states and 2978 transitions. Second operand 3 states. [2019-10-07 15:10:43,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:10:43,391 INFO L93 Difference]: Finished difference Result 5092 states and 7767 transitions. [2019-10-07 15:10:43,391 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 15:10:43,392 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 245 [2019-10-07 15:10:43,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:10:43,411 INFO L225 Difference]: With dead ends: 5092 [2019-10-07 15:10:43,412 INFO L226 Difference]: Without dead ends: 3120 [2019-10-07 15:10:43,419 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 15:10:43,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3120 states. [2019-10-07 15:10:43,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3120 to 3118. [2019-10-07 15:10:43,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3118 states. [2019-10-07 15:10:43,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3118 states to 3118 states and 4818 transitions. [2019-10-07 15:10:43,612 INFO L78 Accepts]: Start accepts. Automaton has 3118 states and 4818 transitions. Word has length 245 [2019-10-07 15:10:43,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:10:43,612 INFO L462 AbstractCegarLoop]: Abstraction has 3118 states and 4818 transitions. [2019-10-07 15:10:43,612 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 15:10:43,612 INFO L276 IsEmpty]: Start isEmpty. Operand 3118 states and 4818 transitions. [2019-10-07 15:10:43,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2019-10-07 15:10:43,631 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:10:43,631 INFO L385 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:10:43,632 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:10:43,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:10:43,632 INFO L82 PathProgramCache]: Analyzing trace with hash -847646017, now seen corresponding path program 1 times [2019-10-07 15:10:43,632 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:10:43,632 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:10:43,633 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:10:43,633 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:10:43,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:10:43,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:10:43,807 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2019-10-07 15:10:43,808 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:10:43,808 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:10:43,808 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 15:10:43,809 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 15:10:43,809 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 15:10:43,809 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:10:43,809 INFO L87 Difference]: Start difference. First operand 3118 states and 4818 transitions. Second operand 3 states. [2019-10-07 15:10:44,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:10:44,098 INFO L93 Difference]: Finished difference Result 8388 states and 13319 transitions. [2019-10-07 15:10:44,098 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 15:10:44,098 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 246 [2019-10-07 15:10:44,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:10:44,143 INFO L225 Difference]: With dead ends: 8388 [2019-10-07 15:10:44,143 INFO L226 Difference]: Without dead ends: 5328 [2019-10-07 15:10:44,163 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 15:10:44,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5328 states. [2019-10-07 15:10:44,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5328 to 5326. [2019-10-07 15:10:44,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5326 states. [2019-10-07 15:10:44,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5326 states to 5326 states and 8498 transitions. [2019-10-07 15:10:44,747 INFO L78 Accepts]: Start accepts. Automaton has 5326 states and 8498 transitions. Word has length 246 [2019-10-07 15:10:44,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:10:44,747 INFO L462 AbstractCegarLoop]: Abstraction has 5326 states and 8498 transitions. [2019-10-07 15:10:44,747 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 15:10:44,748 INFO L276 IsEmpty]: Start isEmpty. Operand 5326 states and 8498 transitions. [2019-10-07 15:10:44,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2019-10-07 15:10:44,790 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:10:44,791 INFO L385 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:10:44,791 INFO L410 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:10:44,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:10:44,792 INFO L82 PathProgramCache]: Analyzing trace with hash 975502990, now seen corresponding path program 1 times [2019-10-07 15:10:44,792 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:10:44,792 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:10:44,793 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:10:44,793 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:10:44,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:10:44,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:10:44,972 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2019-10-07 15:10:44,972 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:10:44,973 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:10:44,973 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 15:10:44,973 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 15:10:44,974 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 15:10:44,974 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:10:44,974 INFO L87 Difference]: Start difference. First operand 5326 states and 8498 transitions. Second operand 3 states. [2019-10-07 15:10:45,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:10:45,432 INFO L93 Difference]: Finished difference Result 14692 states and 23847 transitions. [2019-10-07 15:10:45,433 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 15:10:45,433 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 247 [2019-10-07 15:10:45,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:10:45,498 INFO L225 Difference]: With dead ends: 14692 [2019-10-07 15:10:45,499 INFO L226 Difference]: Without dead ends: 9424 [2019-10-07 15:10:45,522 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 15:10:45,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9424 states. [2019-10-07 15:10:46,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9424 to 9422. [2019-10-07 15:10:46,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9422 states. [2019-10-07 15:10:46,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9422 states to 9422 states and 15282 transitions. [2019-10-07 15:10:46,277 INFO L78 Accepts]: Start accepts. Automaton has 9422 states and 15282 transitions. Word has length 247 [2019-10-07 15:10:46,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:10:46,278 INFO L462 AbstractCegarLoop]: Abstraction has 9422 states and 15282 transitions. [2019-10-07 15:10:46,278 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 15:10:46,278 INFO L276 IsEmpty]: Start isEmpty. Operand 9422 states and 15282 transitions. [2019-10-07 15:10:46,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2019-10-07 15:10:46,342 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:10:46,343 INFO L385 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:10:46,344 INFO L410 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:10:46,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:10:46,344 INFO L82 PathProgramCache]: Analyzing trace with hash 1715967229, now seen corresponding path program 1 times [2019-10-07 15:10:46,345 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:10:46,345 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:10:46,345 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:10:46,346 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:10:46,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:10:46,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:10:46,961 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 2 proven. 15 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2019-10-07 15:10:46,962 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:10:46,962 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 15:10:46,962 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 15:10:47,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:10:47,696 INFO L256 TraceCheckSpWp]: Trace formula consists of 3448 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-07 15:10:47,740 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 15:10:48,757 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2019-10-07 15:10:48,758 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 15:10:49,203 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2019-10-07 15:10:49,204 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2019-10-07 15:10:49,253 INFO L162 IcfgInterpreter]: Started Sifa with 199 locations of interest [2019-10-07 15:10:49,253 INFO L169 IcfgInterpreter]: Building call graph [2019-10-07 15:10:49,262 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-07 15:10:49,271 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-07 15:10:49,272 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-07 15:12:00,049 WARN L191 SmtUtils]: Spent 320.00 ms on a formula simplification that was a NOOP. DAG size: 701 [2019-10-07 15:12:04,223 WARN L191 SmtUtils]: Spent 1.30 s on a formula simplification. DAG size of input: 306 DAG size of output: 249 [2019-10-07 15:12:04,563 WARN L191 SmtUtils]: Spent 331.00 ms on a formula simplification that was a NOOP. DAG size: 739 [2019-10-07 15:12:05,029 WARN L191 SmtUtils]: Spent 461.00 ms on a formula simplification that was a NOOP. DAG size: 739 [2019-10-07 15:12:05,554 WARN L191 SmtUtils]: Spent 521.00 ms on a formula simplification that was a NOOP. DAG size: 739 [2019-10-07 15:12:05,847 WARN L191 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 453 [2019-10-07 15:12:06,610 WARN L191 SmtUtils]: Spent 761.00 ms on a formula simplification that was a NOOP. DAG size: 1039 [2019-10-07 15:12:07,336 WARN L191 SmtUtils]: Spent 706.00 ms on a formula simplification that was a NOOP. DAG size: 1039 [2019-10-07 15:12:07,954 WARN L191 SmtUtils]: Spent 613.00 ms on a formula simplification that was a NOOP. DAG size: 1039 [2019-10-07 15:12:08,103 WARN L191 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 453 [2019-10-07 15:12:08,711 WARN L191 SmtUtils]: Spent 606.00 ms on a formula simplification that was a NOOP. DAG size: 1039 [2019-10-07 15:12:09,937 WARN L191 SmtUtils]: Spent 1.20 s on a formula simplification. DAG size of input: 1041 DAG size of output: 1039 [2019-10-07 15:12:10,563 WARN L191 SmtUtils]: Spent 622.00 ms on a formula simplification that was a NOOP. DAG size: 1039 [2019-10-07 15:12:10,712 WARN L191 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 453 [2019-10-07 15:12:11,332 WARN L191 SmtUtils]: Spent 618.00 ms on a formula simplification that was a NOOP. DAG size: 1039 [2019-10-07 15:12:11,996 WARN L191 SmtUtils]: Spent 662.00 ms on a formula simplification that was a NOOP. DAG size: 1039 [2019-10-07 15:12:12,596 WARN L191 SmtUtils]: Spent 595.00 ms on a formula simplification that was a NOOP. DAG size: 1039 [2019-10-07 15:12:12,721 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 453 [2019-10-07 15:12:13,321 WARN L191 SmtUtils]: Spent 598.00 ms on a formula simplification that was a NOOP. DAG size: 1039 [2019-10-07 15:12:13,347 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 568 for LOIs [2019-10-07 15:12:13,653 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 666 [2019-10-07 15:12:13,762 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 666 [2019-10-07 15:12:13,892 WARN L191 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 453 [2019-10-07 15:12:14,382 WARN L191 SmtUtils]: Spent 487.00 ms on a formula simplification that was a NOOP. DAG size: 966 [2019-10-07 15:12:14,384 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 1091 for LOIs [2019-10-07 15:12:14,977 WARN L191 SmtUtils]: Spent 592.00 ms on a formula simplification that was a NOOP. DAG size: 1091 [2019-10-07 15:12:15,565 WARN L191 SmtUtils]: Spent 583.00 ms on a formula simplification that was a NOOP. DAG size: 1091 [2019-10-07 15:12:15,815 WARN L191 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 633 [2019-10-07 15:12:16,803 WARN L191 SmtUtils]: Spent 986.00 ms on a formula simplification that was a NOOP. DAG size: 1279 [2019-10-07 15:12:17,454 WARN L191 SmtUtils]: Spent 633.00 ms on a formula simplification that was a NOOP. DAG size: 1091 [2019-10-07 15:12:18,052 WARN L191 SmtUtils]: Spent 592.00 ms on a formula simplification that was a NOOP. DAG size: 1091 [2019-10-07 15:12:18,315 WARN L191 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 633 [2019-10-07 15:12:19,267 WARN L191 SmtUtils]: Spent 950.00 ms on a formula simplification that was a NOOP. DAG size: 1279 [2019-10-07 15:12:19,942 WARN L191 SmtUtils]: Spent 641.00 ms on a formula simplification that was a NOOP. DAG size: 1091 [2019-10-07 15:12:20,566 WARN L191 SmtUtils]: Spent 620.00 ms on a formula simplification that was a NOOP. DAG size: 1091 [2019-10-07 15:12:20,805 WARN L191 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 633 [2019-10-07 15:12:21,753 WARN L191 SmtUtils]: Spent 946.00 ms on a formula simplification that was a NOOP. DAG size: 1279 [2019-10-07 15:12:22,707 WARN L191 SmtUtils]: Spent 927.00 ms on a formula simplification. DAG size of input: 1281 DAG size of output: 1091 [2019-10-07 15:12:23,293 WARN L191 SmtUtils]: Spent 582.00 ms on a formula simplification that was a NOOP. DAG size: 1091 [2019-10-07 15:12:23,821 WARN L191 SmtUtils]: Spent 509.00 ms on a formula simplification that was a NOOP. DAG size: 633 [2019-10-07 15:12:24,789 WARN L191 SmtUtils]: Spent 966.00 ms on a formula simplification that was a NOOP. DAG size: 1279 [2019-10-07 15:12:25,394 WARN L191 SmtUtils]: Spent 586.00 ms on a formula simplification that was a NOOP. DAG size: 1091 [2019-10-07 15:12:25,999 WARN L191 SmtUtils]: Spent 602.00 ms on a formula simplification that was a NOOP. DAG size: 1091 [2019-10-07 15:12:26,329 WARN L191 SmtUtils]: Spent 325.00 ms on a formula simplification that was a NOOP. DAG size: 633 [2019-10-07 15:12:27,311 WARN L191 SmtUtils]: Spent 980.00 ms on a formula simplification that was a NOOP. DAG size: 1279 [2019-10-07 15:12:27,910 WARN L191 SmtUtils]: Spent 595.00 ms on a formula simplification that was a NOOP. DAG size: 1091 [2019-10-07 15:12:28,496 WARN L191 SmtUtils]: Spent 583.00 ms on a formula simplification that was a NOOP. DAG size: 1091 [2019-10-07 15:12:28,740 WARN L191 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 633 [2019-10-07 15:12:29,713 WARN L191 SmtUtils]: Spent 971.00 ms on a formula simplification that was a NOOP. DAG size: 1279 [2019-10-07 15:12:30,307 WARN L191 SmtUtils]: Spent 591.00 ms on a formula simplification that was a NOOP. DAG size: 1091 [2019-10-07 15:12:30,914 WARN L191 SmtUtils]: Spent 604.00 ms on a formula simplification that was a NOOP. DAG size: 1091 [2019-10-07 15:12:31,152 WARN L191 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 633 [2019-10-07 15:12:32,106 WARN L191 SmtUtils]: Spent 952.00 ms on a formula simplification that was a NOOP. DAG size: 1279 [2019-10-07 15:12:32,699 WARN L191 SmtUtils]: Spent 590.00 ms on a formula simplification that was a NOOP. DAG size: 1091 [2019-10-07 15:12:33,294 WARN L191 SmtUtils]: Spent 592.00 ms on a formula simplification that was a NOOP. DAG size: 1091 [2019-10-07 15:12:33,533 WARN L191 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 633 [2019-10-07 15:12:34,497 WARN L191 SmtUtils]: Spent 962.00 ms on a formula simplification that was a NOOP. DAG size: 1279 [2019-10-07 15:12:35,091 WARN L191 SmtUtils]: Spent 591.00 ms on a formula simplification that was a NOOP. DAG size: 1091 [2019-10-07 15:12:35,683 WARN L191 SmtUtils]: Spent 589.00 ms on a formula simplification that was a NOOP. DAG size: 1091 [2019-10-07 15:12:35,922 WARN L191 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 633 [2019-10-07 15:12:36,894 WARN L191 SmtUtils]: Spent 970.00 ms on a formula simplification that was a NOOP. DAG size: 1279 [2019-10-07 15:12:37,520 WARN L191 SmtUtils]: Spent 623.00 ms on a formula simplification that was a NOOP. DAG size: 1091 [2019-10-07 15:12:38,120 WARN L191 SmtUtils]: Spent 597.00 ms on a formula simplification that was a NOOP. DAG size: 1091 [2019-10-07 15:12:38,366 WARN L191 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 633 [2019-10-07 15:12:39,330 WARN L191 SmtUtils]: Spent 961.00 ms on a formula simplification that was a NOOP. DAG size: 1279 [2019-10-07 15:12:39,919 WARN L191 SmtUtils]: Spent 586.00 ms on a formula simplification that was a NOOP. DAG size: 1091 [2019-10-07 15:12:40,518 WARN L191 SmtUtils]: Spent 596.00 ms on a formula simplification that was a NOOP. DAG size: 1091 [2019-10-07 15:12:40,756 WARN L191 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 633 [2019-10-07 15:12:41,727 WARN L191 SmtUtils]: Spent 968.00 ms on a formula simplification that was a NOOP. DAG size: 1279 [2019-10-07 15:12:42,328 WARN L191 SmtUtils]: Spent 598.00 ms on a formula simplification that was a NOOP. DAG size: 1091 [2019-10-07 15:12:42,923 WARN L191 SmtUtils]: Spent 591.00 ms on a formula simplification that was a NOOP. DAG size: 1091 [2019-10-07 15:12:43,161 WARN L191 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 633 [2019-10-07 15:12:44,119 WARN L191 SmtUtils]: Spent 956.00 ms on a formula simplification that was a NOOP. DAG size: 1279 [2019-10-07 15:12:44,726 WARN L191 SmtUtils]: Spent 604.00 ms on a formula simplification that was a NOOP. DAG size: 1091 [2019-10-07 15:12:45,319 WARN L191 SmtUtils]: Spent 590.00 ms on a formula simplification that was a NOOP. DAG size: 1091 [2019-10-07 15:12:45,565 WARN L191 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 633 [2019-10-07 15:12:46,520 WARN L191 SmtUtils]: Spent 953.00 ms on a formula simplification that was a NOOP. DAG size: 1279 [2019-10-07 15:12:47,527 WARN L191 SmtUtils]: Spent 964.00 ms on a formula simplification that was a NOOP. DAG size: 1279 [2019-10-07 15:12:48,486 WARN L191 SmtUtils]: Spent 955.00 ms on a formula simplification that was a NOOP. DAG size: 1279 [2019-10-07 15:12:48,736 WARN L191 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 633 [2019-10-07 15:12:49,701 WARN L191 SmtUtils]: Spent 963.00 ms on a formula simplification that was a NOOP. DAG size: 1279 [2019-10-07 15:12:51,509 WARN L191 SmtUtils]: Spent 1.79 s on a formula simplification. DAG size of input: 1281 DAG size of output: 1279 [2019-10-07 15:12:52,505 WARN L191 SmtUtils]: Spent 991.00 ms on a formula simplification that was a NOOP. DAG size: 1279 [2019-10-07 15:12:52,759 WARN L191 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 633 [2019-10-07 15:12:53,722 WARN L191 SmtUtils]: Spent 961.00 ms on a formula simplification that was a NOOP. DAG size: 1279 [2019-10-07 15:12:54,697 WARN L191 SmtUtils]: Spent 972.00 ms on a formula simplification that was a NOOP. DAG size: 1279 [2019-10-07 15:12:55,698 WARN L191 SmtUtils]: Spent 997.00 ms on a formula simplification that was a NOOP. DAG size: 1279 [2019-10-07 15:12:55,937 WARN L191 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 633 [2019-10-07 15:12:56,927 WARN L191 SmtUtils]: Spent 988.00 ms on a formula simplification that was a NOOP. DAG size: 1279 [2019-10-07 15:12:57,952 WARN L191 SmtUtils]: Spent 985.00 ms on a formula simplification that was a NOOP. DAG size: 1281 [2019-10-07 15:12:58,927 WARN L191 SmtUtils]: Spent 971.00 ms on a formula simplification that was a NOOP. DAG size: 1281 [2019-10-07 15:12:59,172 WARN L191 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 636 [2019-10-07 15:13:00,151 WARN L191 SmtUtils]: Spent 976.00 ms on a formula simplification that was a NOOP. DAG size: 1283 [2019-10-07 15:13:01,980 WARN L191 SmtUtils]: Spent 1.81 s on a formula simplification. DAG size of input: 1285 DAG size of output: 1283 [2019-10-07 15:13:02,958 WARN L191 SmtUtils]: Spent 974.00 ms on a formula simplification that was a NOOP. DAG size: 1283 [2019-10-07 15:13:03,209 WARN L191 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 636 [2019-10-07 15:13:04,211 WARN L191 SmtUtils]: Spent 1000.00 ms on a formula simplification that was a NOOP. DAG size: 1283 [2019-10-07 15:13:05,874 WARN L191 SmtUtils]: Spent 1.66 s on a formula simplification. DAG size of input: 1285 DAG size of output: 1281 [2019-10-07 15:13:06,849 WARN L191 SmtUtils]: Spent 970.00 ms on a formula simplification that was a NOOP. DAG size: 1281 [2019-10-07 15:13:07,101 WARN L191 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 636 [2019-10-07 15:13:08,077 WARN L191 SmtUtils]: Spent 974.00 ms on a formula simplification that was a NOOP. DAG size: 1283 [2019-10-07 15:13:09,067 WARN L191 SmtUtils]: Spent 981.00 ms on a formula simplification that was a NOOP. DAG size: 1281 [2019-10-07 15:13:10,038 WARN L191 SmtUtils]: Spent 967.00 ms on a formula simplification that was a NOOP. DAG size: 1281 [2019-10-07 15:13:10,282 WARN L191 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 636 [2019-10-07 15:13:11,270 WARN L191 SmtUtils]: Spent 986.00 ms on a formula simplification that was a NOOP. DAG size: 1283 [2019-10-07 15:13:12,253 WARN L191 SmtUtils]: Spent 979.00 ms on a formula simplification that was a NOOP. DAG size: 1283 [2019-10-07 15:13:13,233 WARN L191 SmtUtils]: Spent 976.00 ms on a formula simplification that was a NOOP. DAG size: 1283 [2019-10-07 15:13:13,480 WARN L191 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 636 [2019-10-07 15:13:14,468 WARN L191 SmtUtils]: Spent 986.00 ms on a formula simplification that was a NOOP. DAG size: 1285 [2019-10-07 15:13:16,331 WARN L191 SmtUtils]: Spent 1.81 s on a formula simplification. DAG size of input: 1281 DAG size of output: 1279 [2019-10-07 15:13:17,313 WARN L191 SmtUtils]: Spent 977.00 ms on a formula simplification that was a NOOP. DAG size: 1279 [2019-10-07 15:13:17,563 WARN L191 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 633 [2019-10-07 15:13:18,544 WARN L191 SmtUtils]: Spent 979.00 ms on a formula simplification that was a NOOP. DAG size: 1279 [2019-10-07 15:13:20,351 WARN L191 SmtUtils]: Spent 1.79 s on a formula simplification. DAG size of input: 1281 DAG size of output: 1279 [2019-10-07 15:13:21,342 WARN L191 SmtUtils]: Spent 987.00 ms on a formula simplification that was a NOOP. DAG size: 1279 [2019-10-07 15:13:21,603 WARN L191 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 633 [2019-10-07 15:13:22,586 WARN L191 SmtUtils]: Spent 982.00 ms on a formula simplification that was a NOOP. DAG size: 1279 [2019-10-07 15:13:23,599 WARN L191 SmtUtils]: Spent 1.01 s on a formula simplification that was a NOOP. DAG size: 1279 [2019-10-07 15:13:24,616 WARN L191 SmtUtils]: Spent 1.01 s on a formula simplification that was a NOOP. DAG size: 1279 [2019-10-07 15:13:24,856 WARN L191 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 633 [2019-10-07 15:13:25,848 WARN L191 SmtUtils]: Spent 990.00 ms on a formula simplification that was a NOOP. DAG size: 1279 [2019-10-07 15:13:28,602 WARN L191 SmtUtils]: Spent 2.71 s on a formula simplification. DAG size of input: 1281 DAG size of output: 1279 [2019-10-07 15:13:29,579 WARN L191 SmtUtils]: Spent 973.00 ms on a formula simplification that was a NOOP. DAG size: 1279 [2019-10-07 15:13:29,835 WARN L191 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 633 [2019-10-07 15:13:30,838 WARN L191 SmtUtils]: Spent 1.00 s on a formula simplification that was a NOOP. DAG size: 1279 [2019-10-07 15:13:33,553 WARN L191 SmtUtils]: Spent 2.70 s on a formula simplification. DAG size of input: 1281 DAG size of output: 1279 [2019-10-07 15:13:34,541 WARN L191 SmtUtils]: Spent 984.00 ms on a formula simplification that was a NOOP. DAG size: 1279 [2019-10-07 15:13:34,797 WARN L191 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 633 [2019-10-07 15:13:35,783 WARN L191 SmtUtils]: Spent 984.00 ms on a formula simplification that was a NOOP. DAG size: 1279 [2019-10-07 15:13:36,775 WARN L191 SmtUtils]: Spent 989.00 ms on a formula simplification that was a NOOP. DAG size: 1279 [2019-10-07 15:13:37,761 WARN L191 SmtUtils]: Spent 981.00 ms on a formula simplification that was a NOOP. DAG size: 1279 [2019-10-07 15:13:38,013 WARN L191 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 633 [2019-10-07 15:13:39,001 WARN L191 SmtUtils]: Spent 986.00 ms on a formula simplification that was a NOOP. DAG size: 1279 [2019-10-07 15:13:40,000 WARN L191 SmtUtils]: Spent 968.00 ms on a formula simplification that was a NOOP. DAG size: 1283 [2019-10-07 15:13:40,979 WARN L191 SmtUtils]: Spent 975.00 ms on a formula simplification that was a NOOP. DAG size: 1283 [2019-10-07 15:13:41,230 WARN L191 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 636 [2019-10-07 15:13:42,203 WARN L191 SmtUtils]: Spent 971.00 ms on a formula simplification that was a NOOP. DAG size: 1283 [2019-10-07 15:13:44,009 WARN L191 SmtUtils]: Spent 1.79 s on a formula simplification. DAG size of input: 1285 DAG size of output: 1281 [2019-10-07 15:13:45,018 WARN L191 SmtUtils]: Spent 1.01 s on a formula simplification that was a NOOP. DAG size: 1281 [2019-10-07 15:13:45,271 WARN L191 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 636 [2019-10-07 15:13:46,281 WARN L191 SmtUtils]: Spent 1.01 s on a formula simplification that was a NOOP. DAG size: 1283 [2019-10-07 15:13:48,089 WARN L191 SmtUtils]: Spent 1.80 s on a formula simplification. DAG size of input: 1285 DAG size of output: 1281 [2019-10-07 15:13:49,073 WARN L191 SmtUtils]: Spent 980.00 ms on a formula simplification that was a NOOP. DAG size: 1281 [2019-10-07 15:13:49,315 WARN L191 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 636 [2019-10-07 15:13:50,289 WARN L191 SmtUtils]: Spent 972.00 ms on a formula simplification that was a NOOP. DAG size: 1283 [2019-10-07 15:13:52,139 WARN L191 SmtUtils]: Spent 1.84 s on a formula simplification. DAG size of input: 1285 DAG size of output: 1281 [2019-10-07 15:13:53,111 WARN L191 SmtUtils]: Spent 967.00 ms on a formula simplification that was a NOOP. DAG size: 1281 [2019-10-07 15:13:53,362 WARN L191 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 636 [2019-10-07 15:13:54,362 WARN L191 SmtUtils]: Spent 997.00 ms on a formula simplification that was a NOOP. DAG size: 1283 [2019-10-07 15:13:56,071 WARN L191 SmtUtils]: Spent 1.71 s on a formula simplification. DAG size of input: 1287 DAG size of output: 1283 [2019-10-07 15:13:57,051 WARN L191 SmtUtils]: Spent 976.00 ms on a formula simplification that was a NOOP. DAG size: 1283 [2019-10-07 15:13:57,308 WARN L191 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 636 [2019-10-07 15:13:58,294 WARN L191 SmtUtils]: Spent 981.00 ms on a formula simplification that was a NOOP. DAG size: 1285 [2019-10-07 15:13:58,566 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 15:13:58,567 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 15:13:58,573 INFO L168 Benchmark]: Toolchain (without parser) took 212013.55 ms. Allocated memory was 137.4 MB in the beginning and 2.0 GB in the end (delta: 1.9 GB). Free memory was 100.1 MB in the beginning and 1.5 GB in the end (delta: -1.4 GB). Peak memory consumption was 519.4 MB. Max. memory is 7.1 GB. [2019-10-07 15:13:58,574 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 137.4 MB. Free memory was 120.6 MB in the beginning and 120.4 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2019-10-07 15:13:58,574 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1155.89 ms. Allocated memory was 137.4 MB in the beginning and 202.4 MB in the end (delta: 65.0 MB). Free memory was 99.9 MB in the beginning and 138.0 MB in the end (delta: -38.1 MB). Peak memory consumption was 36.1 MB. Max. memory is 7.1 GB. [2019-10-07 15:13:58,575 INFO L168 Benchmark]: Boogie Preprocessor took 201.72 ms. Allocated memory is still 202.4 MB. Free memory was 138.0 MB in the beginning and 128.6 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 7.1 GB. [2019-10-07 15:13:58,575 INFO L168 Benchmark]: RCFGBuilder took 4604.61 ms. Allocated memory was 202.4 MB in the beginning and 306.2 MB in the end (delta: 103.8 MB). Free memory was 128.6 MB in the beginning and 112.1 MB in the end (delta: 16.6 MB). Peak memory consumption was 120.4 MB. Max. memory is 7.1 GB. [2019-10-07 15:13:58,576 INFO L168 Benchmark]: TraceAbstraction took 206046.56 ms. Allocated memory was 306.2 MB in the beginning and 2.0 GB in the end (delta: 1.7 GB). Free memory was 112.1 MB in the beginning and 1.5 GB in the end (delta: -1.4 GB). Peak memory consumption was 362.6 MB. Max. memory is 7.1 GB. [2019-10-07 15:13:58,579 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 137.4 MB. Free memory was 120.6 MB in the beginning and 120.4 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1155.89 ms. Allocated memory was 137.4 MB in the beginning and 202.4 MB in the end (delta: 65.0 MB). Free memory was 99.9 MB in the beginning and 138.0 MB in the end (delta: -38.1 MB). Peak memory consumption was 36.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 201.72 ms. Allocated memory is still 202.4 MB. Free memory was 138.0 MB in the beginning and 128.6 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 4604.61 ms. Allocated memory was 202.4 MB in the beginning and 306.2 MB in the end (delta: 103.8 MB). Free memory was 128.6 MB in the beginning and 112.1 MB in the end (delta: 16.6 MB). Peak memory consumption was 120.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 206046.56 ms. Allocated memory was 306.2 MB in the beginning and 2.0 GB in the end (delta: 1.7 GB). Free memory was 112.1 MB in the beginning and 1.5 GB in the end (delta: -1.4 GB). Peak memory consumption was 362.6 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...