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_spec8_product34.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-36ac518-m [2019-10-07 15:09:48,675 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-07 15:09:48,678 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-07 15:09:48,696 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-07 15:09:48,696 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-07 15:09:48,698 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-07 15:09:48,701 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-07 15:09:48,703 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-07 15:09:48,704 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-07 15:09:48,705 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-07 15:09:48,706 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-07 15:09:48,707 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-07 15:09:48,708 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-07 15:09:48,709 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-07 15:09:48,710 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-07 15:09:48,711 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-07 15:09:48,712 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-07 15:09:48,713 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-07 15:09:48,714 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-07 15:09:48,716 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-07 15:09:48,718 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-07 15:09:48,719 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-07 15:09:48,720 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-07 15:09:48,721 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-07 15:09:48,724 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-07 15:09:48,724 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-07 15:09:48,725 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-07 15:09:48,728 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-07 15:09:48,728 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-07 15:09:48,729 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-07 15:09:48,730 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-07 15:09:48,733 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-07 15:09:48,734 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-07 15:09:48,735 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-07 15:09:48,736 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-07 15:09:48,736 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-07 15:09:48,737 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-07 15:09:48,737 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-07 15:09:48,737 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-07 15:09:48,741 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-07 15:09:48,743 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-07 15:09:48,744 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 15:09:48,768 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-07 15:09:48,769 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-07 15:09:48,770 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-07 15:09:48,772 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-07 15:09:48,773 INFO L138 SettingsManager]: * Use SBE=true [2019-10-07 15:09:48,773 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-07 15:09:48,773 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-07 15:09:48,773 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-07 15:09:48,774 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-07 15:09:48,774 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-07 15:09:48,774 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-07 15:09:48,774 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-07 15:09:48,774 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-07 15:09:48,775 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-07 15:09:48,775 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-07 15:09:48,776 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-07 15:09:48,777 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-07 15:09:48,777 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-07 15:09:48,777 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-07 15:09:48,777 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-07 15:09:48,778 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-07 15:09:48,778 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 15:09:48,778 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-07 15:09:48,778 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-07 15:09:48,778 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-07 15:09:48,779 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-07 15:09:48,779 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-07 15:09:48,779 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-07 15:09:48,779 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-10-07 15:09:49,094 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-07 15:09:49,114 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-07 15:09:49,117 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-07 15:09:49,118 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-07 15:09:49,119 INFO L275 PluginConnector]: CDTParser initialized [2019-10-07 15:09:49,119 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec8_product34.cil.c [2019-10-07 15:09:49,187 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dbf0e148c/92cc9ff67f9c4362bddd3c7826bb221d/FLAGf54ae8c93 [2019-10-07 15:09:49,780 INFO L306 CDTParser]: Found 1 translation units. [2019-10-07 15:09:49,781 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec8_product34.cil.c [2019-10-07 15:09:49,826 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dbf0e148c/92cc9ff67f9c4362bddd3c7826bb221d/FLAGf54ae8c93 [2019-10-07 15:09:49,973 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dbf0e148c/92cc9ff67f9c4362bddd3c7826bb221d [2019-10-07 15:09:49,981 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-07 15:09:49,983 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-07 15:09:49,984 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-07 15:09:49,984 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-07 15:09:49,988 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-07 15:09:49,989 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 03:09:49" (1/1) ... [2019-10-07 15:09:49,992 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63b14516 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:09:49, skipping insertion in model container [2019-10-07 15:09:49,992 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 03:09:49" (1/1) ... [2019-10-07 15:09:50,000 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-07 15:09:50,087 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-07 15:09:50,846 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 15:09:50,874 INFO L188 MainTranslator]: Completed pre-run [2019-10-07 15:09:51,002 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 15:09:51,120 INFO L192 MainTranslator]: Completed translation [2019-10-07 15:09:51,121 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:09:51 WrapperNode [2019-10-07 15:09:51,121 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-07 15:09:51,122 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-07 15:09:51,122 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-07 15:09:51,123 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-07 15:09:51,142 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:09:51" (1/1) ... [2019-10-07 15:09:51,143 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:09:51" (1/1) ... [2019-10-07 15:09:51,177 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:09:51" (1/1) ... [2019-10-07 15:09:51,177 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:09:51" (1/1) ... [2019-10-07 15:09:51,263 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:09:51" (1/1) ... [2019-10-07 15:09:51,289 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:09:51" (1/1) ... [2019-10-07 15:09:51,301 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:09:51" (1/1) ... [2019-10-07 15:09:51,319 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-07 15:09:51,319 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-07 15:09:51,320 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-07 15:09:51,320 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-07 15:09:51,321 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:09:51" (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 15:09:51,387 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-07 15:09:51,387 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-07 15:09:51,388 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-07 15:09:51,388 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-07 15:09:51,388 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-07 15:09:51,388 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-07 15:09:51,389 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-07 15:09:51,389 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-07 15:09:51,389 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-07 15:09:51,389 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-07 15:09:51,389 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-07 15:09:51,390 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-07 15:09:51,390 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-07 15:09:51,390 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-07 15:09:51,390 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-07 15:09:51,390 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-07 15:09:51,391 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-07 15:09:51,391 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-07 15:09:51,391 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-07 15:09:51,391 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-07 15:09:51,391 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-07 15:09:51,392 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-07 15:09:51,392 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-07 15:09:51,392 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-07 15:09:51,392 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-07 15:09:51,392 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-07 15:09:51,393 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-07 15:09:51,393 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-07 15:09:51,393 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-07 15:09:51,393 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-07 15:09:51,393 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-07 15:09:51,393 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-07 15:09:51,394 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-07 15:09:51,394 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-07 15:09:51,394 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-07 15:09:51,394 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-07 15:09:51,394 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-07 15:09:51,394 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-07 15:09:51,394 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptAutoResponder_spec__1 [2019-10-07 15:09:51,395 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptAutoResponder_spec__2 [2019-10-07 15:09:51,395 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-07 15:09:51,395 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-07 15:09:51,395 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-07 15:09:51,395 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-07 15:09:51,395 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-07 15:09:51,395 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-07 15:09:51,396 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-07 15:09:51,396 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-07 15:09:51,396 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-07 15:09:51,396 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-07 15:09:51,396 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-07 15:09:51,396 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-07 15:09:51,396 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-07 15:09:51,397 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-07 15:09:51,397 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-07 15:09:51,397 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-07 15:09:51,397 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-07 15:09:51,397 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-07 15:09:51,397 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-07 15:09:51,398 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-07 15:09:51,398 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-07 15:09:51,398 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-07 15:09:51,398 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-07 15:09:51,398 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-07 15:09:51,398 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-07 15:09:51,399 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-10-07 15:09:51,399 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-10-07 15:09:51,399 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-07 15:09:51,399 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-07 15:09:51,399 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Encrypt [2019-10-07 15:09:51,399 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AddressBook [2019-10-07 15:09:51,399 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-07 15:09:51,400 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-07 15:09:51,400 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-10-07 15:09:51,400 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Forward [2019-10-07 15:09:51,400 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Verify [2019-10-07 15:09:51,400 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-07 15:09:51,400 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-07 15:09:51,401 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-07 15:09:51,401 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-07 15:09:51,401 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-07 15:09:51,401 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-07 15:09:51,401 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-07 15:09:51,401 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-07 15:09:51,401 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-07 15:09:51,402 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-10-07 15:09:51,402 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-07 15:09:51,402 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-10-07 15:09:51,402 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-07 15:09:51,402 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-07 15:09:51,402 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-07 15:09:51,403 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-07 15:09:51,403 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-07 15:09:51,403 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-07 15:09:51,403 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-07 15:09:51,403 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-07 15:09:51,403 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-07 15:09:51,403 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-07 15:09:51,404 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-07 15:09:51,404 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-07 15:09:51,404 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-07 15:09:51,404 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-07 15:09:51,404 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-07 15:09:51,404 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-07 15:09:51,404 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-07 15:09:51,405 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-07 15:09:51,405 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-07 15:09:51,405 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-07 15:09:51,405 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-07 15:09:51,405 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-07 15:09:51,405 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-07 15:09:51,405 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-07 15:09:51,406 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__AddressBook [2019-10-07 15:09:51,406 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Forward [2019-10-07 15:09:51,406 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-07 15:09:51,406 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-07 15:09:51,406 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-07 15:09:51,406 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-07 15:09:51,406 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-07 15:09:51,407 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-07 15:09:51,407 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-07 15:09:51,407 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-07 15:09:51,407 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-07 15:09:51,407 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-07 15:09:51,407 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-07 15:09:51,408 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-07 15:09:51,408 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-07 15:09:51,408 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-07 15:09:51,408 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-07 15:09:51,408 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-07 15:09:51,408 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-07 15:09:51,409 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-07 15:09:51,409 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-07 15:09:51,409 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-07 15:09:51,409 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-07 15:09:51,409 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-07 15:09:51,409 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-07 15:09:51,410 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-07 15:09:51,410 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-07 15:09:51,410 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-07 15:09:51,410 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-07 15:09:51,410 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-07 15:09:51,410 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-07 15:09:51,411 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-07 15:09:51,411 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-07 15:09:51,411 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-07 15:09:51,411 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-07 15:09:51,411 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-07 15:09:51,412 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-07 15:09:51,412 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-07 15:09:51,412 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-07 15:09:51,412 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-07 15:09:51,412 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-07 15:09:51,412 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-07 15:09:51,413 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-07 15:09:51,413 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-07 15:09:51,413 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-07 15:09:51,413 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-07 15:09:51,413 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-07 15:09:51,413 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-07 15:09:51,414 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptAutoResponder_spec__1 [2019-10-07 15:09:51,414 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptAutoResponder_spec__2 [2019-10-07 15:09:51,414 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-07 15:09:51,414 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-07 15:09:51,414 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-07 15:09:51,414 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-07 15:09:51,415 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-07 15:09:51,415 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-07 15:09:51,415 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-07 15:09:51,415 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-07 15:09:51,415 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-07 15:09:51,415 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-07 15:09:51,416 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-07 15:09:51,416 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-07 15:09:51,416 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-07 15:09:51,416 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-07 15:09:51,416 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-07 15:09:51,416 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-07 15:09:51,417 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-07 15:09:51,417 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-07 15:09:51,417 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-07 15:09:51,417 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-07 15:09:51,417 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-07 15:09:51,417 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-07 15:09:51,418 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-07 15:09:51,418 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-07 15:09:51,418 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-07 15:09:51,418 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-07 15:09:51,418 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-07 15:09:51,418 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-07 15:09:51,418 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-07 15:09:51,419 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-07 15:09:51,419 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-07 15:09:51,419 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-07 15:09:51,419 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-07 15:09:51,419 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-07 15:09:51,419 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-07 15:09:51,420 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-07 15:09:51,420 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-07 15:09:51,420 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-07 15:09:51,420 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-07 15:09:51,420 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-10-07 15:09:51,420 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-10-07 15:09:51,421 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-07 15:09:51,421 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-07 15:09:51,421 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-07 15:09:51,421 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-07 15:09:51,421 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-07 15:09:51,421 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-07 15:09:51,422 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-07 15:09:51,422 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-07 15:09:51,422 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-07 15:09:51,422 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-07 15:09:51,422 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-07 15:09:51,422 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-07 15:09:51,423 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-07 15:09:51,423 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-07 15:09:51,423 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-07 15:09:51,423 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-07 15:09:51,423 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-07 15:09:51,423 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-07 15:09:51,424 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-07 15:09:51,424 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-07 15:09:51,424 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-07 15:09:51,424 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-07 15:09:51,424 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-07 15:09:51,424 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-07 15:09:51,425 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-10-07 15:09:51,425 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-07 15:09:51,425 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-10-07 15:09:51,425 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-07 15:09:51,425 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-07 15:09:51,425 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Encrypt [2019-10-07 15:09:51,426 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AddressBook [2019-10-07 15:09:51,426 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-10-07 15:09:51,426 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Forward [2019-10-07 15:09:51,426 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Verify [2019-10-07 15:09:51,426 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-07 15:09:51,426 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-07 15:09:51,427 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-07 15:09:51,427 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-07 15:09:51,427 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-07 15:09:51,427 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-07 15:09:51,427 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-07 15:09:51,427 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-07 15:09:51,428 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-07 15:09:51,428 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-07 15:09:51,428 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__AddressBook [2019-10-07 15:09:51,428 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Forward [2019-10-07 15:09:51,428 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-07 15:09:51,429 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-07 15:09:51,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-07 15:09:51,429 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-07 15:09:56,082 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-07 15:09:56,083 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-07 15:09:56,084 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 03:09:56 BoogieIcfgContainer [2019-10-07 15:09:56,085 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-07 15:09:56,086 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-07 15:09:56,086 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-07 15:09:56,089 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-07 15:09:56,089 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.10 03:09:49" (1/3) ... [2019-10-07 15:09:56,090 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18ba6afd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 03:09:56, skipping insertion in model container [2019-10-07 15:09:56,090 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:09:51" (2/3) ... [2019-10-07 15:09:56,091 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18ba6afd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 03:09:56, skipping insertion in model container [2019-10-07 15:09:56,091 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 03:09:56" (3/3) ... [2019-10-07 15:09:56,093 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec8_product34.cil.c [2019-10-07 15:09:56,103 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-07 15:09:56,113 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-07 15:09:56,125 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-07 15:09:56,157 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-07 15:09:56,157 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-07 15:09:56,157 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-07 15:09:56,157 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-07 15:09:56,157 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-07 15:09:56,157 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-07 15:09:56,158 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-07 15:09:56,158 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-07 15:09:56,191 INFO L276 IsEmpty]: Start isEmpty. Operand 458 states. [2019-10-07 15:09:56,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2019-10-07 15:09:56,208 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:09:56,209 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:09:56,211 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:09:56,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:09:56,217 INFO L82 PathProgramCache]: Analyzing trace with hash -75206764, now seen corresponding path program 1 times [2019-10-07 15:09:56,227 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:09:56,227 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:09:56,227 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:09:56,227 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:09:56,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:09:56,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:09:56,879 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 15:09:56,879 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:09:56,880 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:09:56,880 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-07 15:09:56,885 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-07 15:09:56,899 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-07 15:09:56,900 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-07 15:09:56,902 INFO L87 Difference]: Start difference. First operand 458 states. Second operand 2 states. [2019-10-07 15:09:57,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:09:57,044 INFO L93 Difference]: Finished difference Result 698 states and 832 transitions. [2019-10-07 15:09:57,044 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-07 15:09:57,045 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 132 [2019-10-07 15:09:57,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:09:57,076 INFO L225 Difference]: With dead ends: 698 [2019-10-07 15:09:57,076 INFO L226 Difference]: Without dead ends: 431 [2019-10-07 15:09:57,087 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 15:09:57,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 431 states. [2019-10-07 15:09:57,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 431 to 431. [2019-10-07 15:09:57,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 431 states. [2019-10-07 15:09:57,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 431 states to 431 states and 510 transitions. [2019-10-07 15:09:57,242 INFO L78 Accepts]: Start accepts. Automaton has 431 states and 510 transitions. Word has length 132 [2019-10-07 15:09:57,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:09:57,251 INFO L462 AbstractCegarLoop]: Abstraction has 431 states and 510 transitions. [2019-10-07 15:09:57,251 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-07 15:09:57,251 INFO L276 IsEmpty]: Start isEmpty. Operand 431 states and 510 transitions. [2019-10-07 15:09:57,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2019-10-07 15:09:57,268 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:09:57,269 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:09:57,269 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:09:57,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:09:57,270 INFO L82 PathProgramCache]: Analyzing trace with hash -2135594899, now seen corresponding path program 1 times [2019-10-07 15:09:57,270 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:09:57,270 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:09:57,271 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:09:57,271 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:09:57,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:09:57,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:09:57,585 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 15:09:57,585 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:09:57,586 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:09:57,586 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 15:09:57,588 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 15:09:57,588 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 15:09:57,589 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:09:57,589 INFO L87 Difference]: Start difference. First operand 431 states and 510 transitions. Second operand 3 states. [2019-10-07 15:09:57,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:09:57,657 INFO L93 Difference]: Finished difference Result 683 states and 800 transitions. [2019-10-07 15:09:57,658 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 15:09:57,658 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 133 [2019-10-07 15:09:57,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:09:57,670 INFO L225 Difference]: With dead ends: 683 [2019-10-07 15:09:57,671 INFO L226 Difference]: Without dead ends: 433 [2019-10-07 15:09:57,673 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 15:09:57,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 433 states. [2019-10-07 15:09:57,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 433 to 433. [2019-10-07 15:09:57,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 433 states. [2019-10-07 15:09:57,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 433 states to 433 states and 512 transitions. [2019-10-07 15:09:57,724 INFO L78 Accepts]: Start accepts. Automaton has 433 states and 512 transitions. Word has length 133 [2019-10-07 15:09:57,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:09:57,725 INFO L462 AbstractCegarLoop]: Abstraction has 433 states and 512 transitions. [2019-10-07 15:09:57,725 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 15:09:57,725 INFO L276 IsEmpty]: Start isEmpty. Operand 433 states and 512 transitions. [2019-10-07 15:09:57,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2019-10-07 15:09:57,734 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:09:57,735 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:09:57,735 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:09:57,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:09:57,735 INFO L82 PathProgramCache]: Analyzing trace with hash -128607397, now seen corresponding path program 1 times [2019-10-07 15:09:57,736 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:09:57,736 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:09:57,736 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:09:57,736 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:09:57,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:09:57,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:09:57,906 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 15:09:57,906 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:09:57,906 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:09:57,907 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 15:09:57,910 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 15:09:57,911 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 15:09:57,911 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:09:57,911 INFO L87 Difference]: Start difference. First operand 433 states and 512 transitions. Second operand 3 states. [2019-10-07 15:09:57,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:09:57,981 INFO L93 Difference]: Finished difference Result 850 states and 1034 transitions. [2019-10-07 15:09:57,982 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 15:09:57,982 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 138 [2019-10-07 15:09:57,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:09:57,990 INFO L225 Difference]: With dead ends: 850 [2019-10-07 15:09:57,990 INFO L226 Difference]: Without dead ends: 475 [2019-10-07 15:09:57,993 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 15:09:57,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 475 states. [2019-10-07 15:09:58,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 475 to 474. [2019-10-07 15:09:58,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 474 states. [2019-10-07 15:09:58,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 474 states to 474 states and 583 transitions. [2019-10-07 15:09:58,033 INFO L78 Accepts]: Start accepts. Automaton has 474 states and 583 transitions. Word has length 138 [2019-10-07 15:09:58,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:09:58,034 INFO L462 AbstractCegarLoop]: Abstraction has 474 states and 583 transitions. [2019-10-07 15:09:58,034 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 15:09:58,034 INFO L276 IsEmpty]: Start isEmpty. Operand 474 states and 583 transitions. [2019-10-07 15:09:58,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2019-10-07 15:09:58,038 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:09:58,038 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:09:58,039 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:09:58,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:09:58,039 INFO L82 PathProgramCache]: Analyzing trace with hash -516144309, now seen corresponding path program 1 times [2019-10-07 15:09:58,039 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:09:58,040 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:09:58,040 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:09:58,040 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:09:58,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:09:58,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:09:58,492 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 15:09:58,493 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:09:58,493 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:09:58,493 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 15:09:58,494 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 15:09:58,494 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 15:09:58,494 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:09:58,495 INFO L87 Difference]: Start difference. First operand 474 states and 583 transitions. Second operand 3 states. [2019-10-07 15:09:58,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:09:58,552 INFO L93 Difference]: Finished difference Result 793 states and 957 transitions. [2019-10-07 15:09:58,553 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 15:09:58,553 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 139 [2019-10-07 15:09:58,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:09:58,558 INFO L225 Difference]: With dead ends: 793 [2019-10-07 15:09:58,558 INFO L226 Difference]: Without dead ends: 555 [2019-10-07 15:09:58,559 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 11 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 15:09:58,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 555 states. [2019-10-07 15:09:58,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 555 to 554. [2019-10-07 15:09:58,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 554 states. [2019-10-07 15:09:58,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 554 states to 554 states and 674 transitions. [2019-10-07 15:09:58,594 INFO L78 Accepts]: Start accepts. Automaton has 554 states and 674 transitions. Word has length 139 [2019-10-07 15:09:58,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:09:58,595 INFO L462 AbstractCegarLoop]: Abstraction has 554 states and 674 transitions. [2019-10-07 15:09:58,596 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 15:09:58,596 INFO L276 IsEmpty]: Start isEmpty. Operand 554 states and 674 transitions. [2019-10-07 15:09:58,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2019-10-07 15:09:58,601 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:09:58,601 INFO L385 BasicCegarLoop]: trace histogram [4, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:09:58,601 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:09:58,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:09:58,602 INFO L82 PathProgramCache]: Analyzing trace with hash -22217736, now seen corresponding path program 1 times [2019-10-07 15:09:58,602 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:09:58,602 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:09:58,603 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:09:58,603 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:09:58,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:09:58,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:09:59,093 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2019-10-07 15:09:59,094 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:09:59,094 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:09:59,095 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2019-10-07 15:09:59,097 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-10-07 15:09:59,097 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-10-07 15:09:59,097 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2019-10-07 15:09:59,098 INFO L87 Difference]: Start difference. First operand 554 states and 674 transitions. Second operand 14 states. [2019-10-07 15:10:03,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:10:03,366 INFO L93 Difference]: Finished difference Result 1324 states and 1599 transitions. [2019-10-07 15:10:03,366 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2019-10-07 15:10:03,366 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 250 [2019-10-07 15:10:03,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:10:03,374 INFO L225 Difference]: With dead ends: 1324 [2019-10-07 15:10:03,374 INFO L226 Difference]: Without dead ends: 1028 [2019-10-07 15:10:03,376 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=119, Invalid=531, Unknown=0, NotChecked=0, Total=650 [2019-10-07 15:10:03,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1028 states. [2019-10-07 15:10:03,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1028 to 1019. [2019-10-07 15:10:03,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1019 states. [2019-10-07 15:10:03,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1019 states to 1019 states and 1248 transitions. [2019-10-07 15:10:03,438 INFO L78 Accepts]: Start accepts. Automaton has 1019 states and 1248 transitions. Word has length 250 [2019-10-07 15:10:03,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:10:03,439 INFO L462 AbstractCegarLoop]: Abstraction has 1019 states and 1248 transitions. [2019-10-07 15:10:03,439 INFO L463 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-10-07 15:10:03,439 INFO L276 IsEmpty]: Start isEmpty. Operand 1019 states and 1248 transitions. [2019-10-07 15:10:03,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2019-10-07 15:10:03,446 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:10:03,446 INFO L385 BasicCegarLoop]: trace histogram [4, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:10:03,447 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:10:03,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:10:03,447 INFO L82 PathProgramCache]: Analyzing trace with hash -954850071, now seen corresponding path program 1 times [2019-10-07 15:10:03,447 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:10:03,448 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:10:03,448 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:10:03,448 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:10:03,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:10:03,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:10:03,671 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2019-10-07 15:10:03,672 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:10:03,672 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:10:03,672 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 15:10:03,673 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 15:10:03,674 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 15:10:03,674 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:10:03,674 INFO L87 Difference]: Start difference. First operand 1019 states and 1248 transitions. Second operand 3 states. [2019-10-07 15:10:03,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:10:03,788 INFO L93 Difference]: Finished difference Result 2144 states and 2717 transitions. [2019-10-07 15:10:03,789 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 15:10:03,789 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 272 [2019-10-07 15:10:03,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:10:03,796 INFO L225 Difference]: With dead ends: 2144 [2019-10-07 15:10:03,796 INFO L226 Difference]: Without dead ends: 1183 [2019-10-07 15:10:03,799 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 15:10:03,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1183 states. [2019-10-07 15:10:03,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1183 to 1181. [2019-10-07 15:10:03,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1181 states. [2019-10-07 15:10:03,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1181 states to 1181 states and 1526 transitions. [2019-10-07 15:10:03,868 INFO L78 Accepts]: Start accepts. Automaton has 1181 states and 1526 transitions. Word has length 272 [2019-10-07 15:10:03,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:10:03,868 INFO L462 AbstractCegarLoop]: Abstraction has 1181 states and 1526 transitions. [2019-10-07 15:10:03,868 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 15:10:03,869 INFO L276 IsEmpty]: Start isEmpty. Operand 1181 states and 1526 transitions. [2019-10-07 15:10:03,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2019-10-07 15:10:03,877 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:10:03,877 INFO L385 BasicCegarLoop]: trace histogram [4, 3, 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, 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 15:10:03,878 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:10:03,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:10:03,878 INFO L82 PathProgramCache]: Analyzing trace with hash 1982471801, now seen corresponding path program 1 times [2019-10-07 15:10:03,878 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:10:03,879 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:10:03,879 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:10:03,879 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:10:03,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:10:03,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:10:04,131 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2019-10-07 15:10:04,132 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:10:04,132 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:10:04,132 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 15:10:04,133 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 15:10:04,133 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 15:10:04,134 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:10:04,134 INFO L87 Difference]: Start difference. First operand 1181 states and 1526 transitions. Second operand 3 states. [2019-10-07 15:10:04,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:10:04,218 INFO L93 Difference]: Finished difference Result 2610 states and 3519 transitions. [2019-10-07 15:10:04,219 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 15:10:04,219 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 273 [2019-10-07 15:10:04,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:10:04,230 INFO L225 Difference]: With dead ends: 2610 [2019-10-07 15:10:04,230 INFO L226 Difference]: Without dead ends: 1487 [2019-10-07 15:10:04,235 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 15:10:04,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1487 states. [2019-10-07 15:10:04,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1487 to 1485. [2019-10-07 15:10:04,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1485 states. [2019-10-07 15:10:04,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1485 states to 1485 states and 2046 transitions. [2019-10-07 15:10:04,326 INFO L78 Accepts]: Start accepts. Automaton has 1485 states and 2046 transitions. Word has length 273 [2019-10-07 15:10:04,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:10:04,327 INFO L462 AbstractCegarLoop]: Abstraction has 1485 states and 2046 transitions. [2019-10-07 15:10:04,327 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 15:10:04,327 INFO L276 IsEmpty]: Start isEmpty. Operand 1485 states and 2046 transitions. [2019-10-07 15:10:04,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2019-10-07 15:10:04,337 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:10:04,337 INFO L385 BasicCegarLoop]: trace histogram [4, 3, 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, 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 15:10:04,337 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:10:04,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:10:04,338 INFO L82 PathProgramCache]: Analyzing trace with hash 1938679751, now seen corresponding path program 1 times [2019-10-07 15:10:04,338 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:10:04,338 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:10:04,338 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:10:04,339 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:10:04,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:10:04,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:10:04,641 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2019-10-07 15:10:04,641 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:10:04,641 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:10:04,642 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 15:10:04,642 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 15:10:04,643 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 15:10:04,643 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:10:04,643 INFO L87 Difference]: Start difference. First operand 1485 states and 2046 transitions. Second operand 3 states. [2019-10-07 15:10:04,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:10:04,748 INFO L93 Difference]: Finished difference Result 3498 states and 5039 transitions. [2019-10-07 15:10:04,749 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 15:10:04,749 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 274 [2019-10-07 15:10:04,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:10:04,763 INFO L225 Difference]: With dead ends: 3498 [2019-10-07 15:10:04,763 INFO L226 Difference]: Without dead ends: 2071 [2019-10-07 15:10:04,769 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 15:10:04,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2071 states. [2019-10-07 15:10:04,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2071 to 2069. [2019-10-07 15:10:04,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2069 states. [2019-10-07 15:10:04,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2069 states to 2069 states and 3038 transitions. [2019-10-07 15:10:04,891 INFO L78 Accepts]: Start accepts. Automaton has 2069 states and 3038 transitions. Word has length 274 [2019-10-07 15:10:04,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:10:04,891 INFO L462 AbstractCegarLoop]: Abstraction has 2069 states and 3038 transitions. [2019-10-07 15:10:04,891 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 15:10:04,891 INFO L276 IsEmpty]: Start isEmpty. Operand 2069 states and 3038 transitions. [2019-10-07 15:10:04,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 276 [2019-10-07 15:10:04,904 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:10:04,905 INFO L385 BasicCegarLoop]: trace histogram [4, 3, 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, 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 15:10:04,905 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:10:04,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:10:04,905 INFO L82 PathProgramCache]: Analyzing trace with hash 1896232409, now seen corresponding path program 1 times [2019-10-07 15:10:04,905 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:10:04,906 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:10:04,906 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:10:04,906 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:10:04,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:10:04,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:10:05,106 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2019-10-07 15:10:05,106 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:10:05,107 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:10:05,107 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 15:10:05,108 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 15:10:05,108 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 15:10:05,108 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:10:05,108 INFO L87 Difference]: Start difference. First operand 2069 states and 3038 transitions. Second operand 3 states. [2019-10-07 15:10:05,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:10:05,265 INFO L93 Difference]: Finished difference Result 5202 states and 7935 transitions. [2019-10-07 15:10:05,266 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 15:10:05,266 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 275 [2019-10-07 15:10:05,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:10:05,288 INFO L225 Difference]: With dead ends: 5202 [2019-10-07 15:10:05,289 INFO L226 Difference]: Without dead ends: 3191 [2019-10-07 15:10:05,298 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 15:10:05,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3191 states. [2019-10-07 15:10:05,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3191 to 3189. [2019-10-07 15:10:05,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3189 states. [2019-10-07 15:10:05,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3189 states to 3189 states and 4926 transitions. [2019-10-07 15:10:05,531 INFO L78 Accepts]: Start accepts. Automaton has 3189 states and 4926 transitions. Word has length 275 [2019-10-07 15:10:05,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:10:05,531 INFO L462 AbstractCegarLoop]: Abstraction has 3189 states and 4926 transitions. [2019-10-07 15:10:05,532 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 15:10:05,532 INFO L276 IsEmpty]: Start isEmpty. Operand 3189 states and 4926 transitions. [2019-10-07 15:10:05,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 282 [2019-10-07 15:10:05,560 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:10:05,561 INFO L385 BasicCegarLoop]: trace histogram [4, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:10:05,561 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:10:05,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:10:05,562 INFO L82 PathProgramCache]: Analyzing trace with hash -757773739, now seen corresponding path program 1 times [2019-10-07 15:10:05,562 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:10:05,562 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:10:05,563 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:10:05,563 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:10:05,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:10:05,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:10:05,799 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2019-10-07 15:10:05,799 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:10:05,799 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:10:05,800 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 15:10:05,800 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 15:10:05,801 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 15:10:05,801 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:10:05,801 INFO L87 Difference]: Start difference. First operand 3189 states and 4926 transitions. Second operand 3 states. [2019-10-07 15:10:06,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:10:06,033 INFO L93 Difference]: Finished difference Result 8466 states and 13439 transitions. [2019-10-07 15:10:06,033 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 15:10:06,034 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 281 [2019-10-07 15:10:06,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:10:06,071 INFO L225 Difference]: With dead ends: 8466 [2019-10-07 15:10:06,072 INFO L226 Difference]: Without dead ends: 5335 [2019-10-07 15:10:06,085 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 15:10:06,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5335 states. [2019-10-07 15:10:06,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5335 to 5333. [2019-10-07 15:10:06,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5333 states. [2019-10-07 15:10:06,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5333 states to 5333 states and 8510 transitions. [2019-10-07 15:10:06,442 INFO L78 Accepts]: Start accepts. Automaton has 5333 states and 8510 transitions. Word has length 281 [2019-10-07 15:10:06,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:10:06,442 INFO L462 AbstractCegarLoop]: Abstraction has 5333 states and 8510 transitions. [2019-10-07 15:10:06,442 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 15:10:06,443 INFO L276 IsEmpty]: Start isEmpty. Operand 5333 states and 8510 transitions. [2019-10-07 15:10:06,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 283 [2019-10-07 15:10:06,481 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:10:06,481 INFO L385 BasicCegarLoop]: trace histogram [4, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:10:06,482 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:10:06,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:10:06,482 INFO L82 PathProgramCache]: Analyzing trace with hash -354035445, now seen corresponding path program 1 times [2019-10-07 15:10:06,483 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:10:06,483 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:10:06,483 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:10:06,483 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:10:06,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:10:06,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:10:06,761 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2019-10-07 15:10:06,761 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:10:06,762 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:10:06,762 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 15:10:06,763 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 15:10:06,763 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 15:10:06,764 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:10:06,764 INFO L87 Difference]: Start difference. First operand 5333 states and 8510 transitions. Second operand 3 states. [2019-10-07 15:10:07,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:10:07,159 INFO L93 Difference]: Finished difference Result 14706 states and 23871 transitions. [2019-10-07 15:10:07,159 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 15:10:07,159 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 282 [2019-10-07 15:10:07,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:10:07,254 INFO L225 Difference]: With dead ends: 14706 [2019-10-07 15:10:07,254 INFO L226 Difference]: Without dead ends: 9431 [2019-10-07 15:10:07,284 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 15:10:07,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9431 states. [2019-10-07 15:10:07,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9431 to 9429. [2019-10-07 15:10:07,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9429 states. [2019-10-07 15:10:07,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9429 states to 9429 states and 15294 transitions. [2019-10-07 15:10:07,978 INFO L78 Accepts]: Start accepts. Automaton has 9429 states and 15294 transitions. Word has length 282 [2019-10-07 15:10:07,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:10:07,979 INFO L462 AbstractCegarLoop]: Abstraction has 9429 states and 15294 transitions. [2019-10-07 15:10:07,979 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 15:10:07,979 INFO L276 IsEmpty]: Start isEmpty. Operand 9429 states and 15294 transitions. [2019-10-07 15:10:08,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2019-10-07 15:10:08,042 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:10:08,043 INFO L385 BasicCegarLoop]: trace histogram [4, 3, 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, 1, 1, 1, 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 15:10:08,043 INFO L410 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:10:08,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:10:08,044 INFO L82 PathProgramCache]: Analyzing trace with hash 396892423, now seen corresponding path program 1 times [2019-10-07 15:10:08,044 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:10:08,044 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:10:08,044 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:10:08,044 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:10:08,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:10:08,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:10:08,791 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 2 proven. 16 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2019-10-07 15:10:08,791 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:10:08,791 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 15:10:08,792 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 15:10:10,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:10:10,397 INFO L256 TraceCheckSpWp]: Trace formula consists of 3864 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-07 15:10:10,422 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 15:10:10,591 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2019-10-07 15:10:10,591 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 15:10:11,151 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2019-10-07 15:10:11,151 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2019-10-07 15:10:11,194 INFO L162 IcfgInterpreter]: Started Sifa with 225 locations of interest [2019-10-07 15:10:11,195 INFO L169 IcfgInterpreter]: Building call graph [2019-10-07 15:10:11,202 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-07 15:10:11,211 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-07 15:10:11,211 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-07 15:11:58,654 WARN L191 SmtUtils]: Spent 462.00 ms on a formula simplification that was a NOOP. DAG size: 733 [2019-10-07 15:12:04,179 WARN L191 SmtUtils]: Spent 1.87 s on a formula simplification. DAG size of input: 368 DAG size of output: 299 [2019-10-07 15:12:04,604 WARN L191 SmtUtils]: Spent 415.00 ms on a formula simplification that was a NOOP. DAG size: 784 [2019-10-07 15:12:04,952 WARN L191 SmtUtils]: Spent 342.00 ms on a formula simplification that was a NOOP. DAG size: 784 [2019-10-07 15:12:05,183 WARN L191 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 784 [2019-10-07 15:12:05,334 WARN L191 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 462 [2019-10-07 15:12:06,054 WARN L191 SmtUtils]: Spent 718.00 ms on a formula simplification that was a NOOP. DAG size: 1090 [2019-10-07 15:12:06,784 WARN L191 SmtUtils]: Spent 711.00 ms on a formula simplification that was a NOOP. DAG size: 1090 [2019-10-07 15:12:07,473 WARN L191 SmtUtils]: Spent 684.00 ms on a formula simplification that was a NOOP. DAG size: 1090 [2019-10-07 15:12:07,619 WARN L191 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 462 [2019-10-07 15:12:08,335 WARN L191 SmtUtils]: Spent 714.00 ms on a formula simplification that was a NOOP. DAG size: 1090 [2019-10-07 15:12:09,651 WARN L191 SmtUtils]: Spent 1.28 s on a formula simplification. DAG size of input: 1092 DAG size of output: 1090 [2019-10-07 15:12:10,379 WARN L191 SmtUtils]: Spent 724.00 ms on a formula simplification that was a NOOP. DAG size: 1090 [2019-10-07 15:12:10,535 WARN L191 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 462 [2019-10-07 15:12:11,228 WARN L191 SmtUtils]: Spent 691.00 ms on a formula simplification that was a NOOP. DAG size: 1090 [2019-10-07 15:12:11,920 WARN L191 SmtUtils]: Spent 688.00 ms on a formula simplification that was a NOOP. DAG size: 1090 [2019-10-07 15:12:12,600 WARN L191 SmtUtils]: Spent 677.00 ms on a formula simplification that was a NOOP. DAG size: 1090 [2019-10-07 15:12:12,744 WARN L191 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 462 [2019-10-07 15:12:13,423 WARN L191 SmtUtils]: Spent 678.00 ms on a formula simplification that was a NOOP. DAG size: 1090 [2019-10-07 15:12:13,451 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 586 for LOIs [2019-10-07 15:12:13,814 WARN L191 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 695 [2019-10-07 15:12:13,947 WARN L191 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 695 [2019-10-07 15:12:14,081 WARN L191 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 462 [2019-10-07 15:12:14,587 WARN L191 SmtUtils]: Spent 504.00 ms on a formula simplification that was a NOOP. DAG size: 1001 [2019-10-07 15:12:14,589 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 1152 for LOIs [2019-10-07 15:12:15,263 WARN L191 SmtUtils]: Spent 673.00 ms on a formula simplification that was a NOOP. DAG size: 1152 [2019-10-07 15:12:15,932 WARN L191 SmtUtils]: Spent 665.00 ms on a formula simplification that was a NOOP. DAG size: 1152 [2019-10-07 15:12:16,356 WARN L191 SmtUtils]: Spent 413.00 ms on a formula simplification that was a NOOP. DAG size: 660 [2019-10-07 15:12:17,453 WARN L191 SmtUtils]: Spent 1.10 s on a formula simplification that was a NOOP. DAG size: 1354 [2019-10-07 15:12:18,147 WARN L191 SmtUtils]: Spent 681.00 ms on a formula simplification that was a NOOP. DAG size: 1152 [2019-10-07 15:12:18,819 WARN L191 SmtUtils]: Spent 668.00 ms on a formula simplification that was a NOOP. DAG size: 1152 [2019-10-07 15:12:19,089 WARN L191 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 660 [2019-10-07 15:12:20,186 WARN L191 SmtUtils]: Spent 1.09 s on a formula simplification that was a NOOP. DAG size: 1354 [2019-10-07 15:12:20,900 WARN L191 SmtUtils]: Spent 681.00 ms on a formula simplification that was a NOOP. DAG size: 1152 [2019-10-07 15:12:21,573 WARN L191 SmtUtils]: Spent 670.00 ms on a formula simplification that was a NOOP. DAG size: 1152 [2019-10-07 15:12:21,997 WARN L191 SmtUtils]: Spent 415.00 ms on a formula simplification that was a NOOP. DAG size: 660 [2019-10-07 15:12:23,094 WARN L191 SmtUtils]: Spent 1.10 s on a formula simplification that was a NOOP. DAG size: 1354 [2019-10-07 15:12:24,223 WARN L191 SmtUtils]: Spent 1.09 s on a formula simplification. DAG size of input: 1356 DAG size of output: 1152 [2019-10-07 15:12:24,898 WARN L191 SmtUtils]: Spent 672.00 ms on a formula simplification that was a NOOP. DAG size: 1152 [2019-10-07 15:12:25,180 WARN L191 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 660 [2019-10-07 15:12:26,291 WARN L191 SmtUtils]: Spent 1.11 s on a formula simplification that was a NOOP. DAG size: 1354 [2019-10-07 15:12:26,986 WARN L191 SmtUtils]: Spent 678.00 ms on a formula simplification that was a NOOP. DAG size: 1152 [2019-10-07 15:12:27,660 WARN L191 SmtUtils]: Spent 670.00 ms on a formula simplification that was a NOOP. DAG size: 1152 [2019-10-07 15:12:27,975 WARN L191 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 660 [2019-10-07 15:12:29,074 WARN L191 SmtUtils]: Spent 1.10 s on a formula simplification that was a NOOP. DAG size: 1354 [2019-10-07 15:12:29,745 WARN L191 SmtUtils]: Spent 668.00 ms on a formula simplification that was a NOOP. DAG size: 1152 [2019-10-07 15:12:30,422 WARN L191 SmtUtils]: Spent 674.00 ms on a formula simplification that was a NOOP. DAG size: 1152 [2019-10-07 15:12:30,690 WARN L191 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 660 [2019-10-07 15:12:31,804 WARN L191 SmtUtils]: Spent 1.11 s on a formula simplification that was a NOOP. DAG size: 1354 [2019-10-07 15:12:32,471 WARN L191 SmtUtils]: Spent 664.00 ms on a formula simplification that was a NOOP. DAG size: 1152 [2019-10-07 15:12:33,151 WARN L191 SmtUtils]: Spent 677.00 ms on a formula simplification that was a NOOP. DAG size: 1152 [2019-10-07 15:12:33,415 WARN L191 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 660 [2019-10-07 15:12:34,514 WARN L191 SmtUtils]: Spent 1.10 s on a formula simplification that was a NOOP. DAG size: 1354 [2019-10-07 15:12:35,185 WARN L191 SmtUtils]: Spent 669.00 ms on a formula simplification that was a NOOP. DAG size: 1152 [2019-10-07 15:12:35,870 WARN L191 SmtUtils]: Spent 681.00 ms on a formula simplification that was a NOOP. DAG size: 1152 [2019-10-07 15:12:36,137 WARN L191 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 660 [2019-10-07 15:12:37,238 WARN L191 SmtUtils]: Spent 1.10 s on a formula simplification that was a NOOP. DAG size: 1354 [2019-10-07 15:12:37,913 WARN L191 SmtUtils]: Spent 672.00 ms on a formula simplification that was a NOOP. DAG size: 1152 [2019-10-07 15:12:38,593 WARN L191 SmtUtils]: Spent 676.00 ms on a formula simplification that was a NOOP. DAG size: 1152 [2019-10-07 15:12:38,853 WARN L191 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 660 [2019-10-07 15:12:39,948 WARN L191 SmtUtils]: Spent 1.09 s on a formula simplification that was a NOOP. DAG size: 1354 [2019-10-07 15:12:40,624 WARN L191 SmtUtils]: Spent 673.00 ms on a formula simplification that was a NOOP. DAG size: 1152 [2019-10-07 15:12:41,295 WARN L191 SmtUtils]: Spent 668.00 ms on a formula simplification that was a NOOP. DAG size: 1152 [2019-10-07 15:12:41,562 WARN L191 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 660 [2019-10-07 15:12:42,665 WARN L191 SmtUtils]: Spent 1.10 s on a formula simplification that was a NOOP. DAG size: 1354 [2019-10-07 15:12:43,346 WARN L191 SmtUtils]: Spent 678.00 ms on a formula simplification that was a NOOP. DAG size: 1152 [2019-10-07 15:12:44,022 WARN L191 SmtUtils]: Spent 673.00 ms on a formula simplification that was a NOOP. DAG size: 1152 [2019-10-07 15:12:44,285 WARN L191 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 660 [2019-10-07 15:12:45,402 WARN L191 SmtUtils]: Spent 1.12 s on a formula simplification that was a NOOP. DAG size: 1354 [2019-10-07 15:12:46,080 WARN L191 SmtUtils]: Spent 675.00 ms on a formula simplification that was a NOOP. DAG size: 1152 [2019-10-07 15:12:46,763 WARN L191 SmtUtils]: Spent 678.00 ms on a formula simplification that was a NOOP. DAG size: 1152 [2019-10-07 15:12:47,029 WARN L191 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 660 [2019-10-07 15:12:48,136 WARN L191 SmtUtils]: Spent 1.11 s on a formula simplification that was a NOOP. DAG size: 1354 [2019-10-07 15:12:48,806 WARN L191 SmtUtils]: Spent 668.00 ms on a formula simplification that was a NOOP. DAG size: 1152 [2019-10-07 15:12:49,478 WARN L191 SmtUtils]: Spent 668.00 ms on a formula simplification that was a NOOP. DAG size: 1152 [2019-10-07 15:12:49,751 WARN L191 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 660 [2019-10-07 15:12:50,857 WARN L191 SmtUtils]: Spent 1.10 s on a formula simplification that was a NOOP. DAG size: 1354 [2019-10-07 15:12:52,043 WARN L191 SmtUtils]: Spent 1.12 s on a formula simplification that was a NOOP. DAG size: 1354 [2019-10-07 15:12:53,157 WARN L191 SmtUtils]: Spent 1.11 s on a formula simplification that was a NOOP. DAG size: 1354 [2019-10-07 15:12:53,433 WARN L191 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 660 [2019-10-07 15:12:54,536 WARN L191 SmtUtils]: Spent 1.10 s on a formula simplification that was a NOOP. DAG size: 1354 [2019-10-07 15:12:56,602 WARN L191 SmtUtils]: Spent 2.05 s on a formula simplification. DAG size of input: 1356 DAG size of output: 1354 [2019-10-07 15:12:57,709 WARN L191 SmtUtils]: Spent 1.10 s on a formula simplification that was a NOOP. DAG size: 1354 [2019-10-07 15:12:57,990 WARN L191 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 660 [2019-10-07 15:12:59,092 WARN L191 SmtUtils]: Spent 1.10 s on a formula simplification that was a NOOP. DAG size: 1354 [2019-10-07 15:13:00,185 WARN L191 SmtUtils]: Spent 1.09 s on a formula simplification that was a NOOP. DAG size: 1354 [2019-10-07 15:13:01,310 WARN L191 SmtUtils]: Spent 1.12 s on a formula simplification that was a NOOP. DAG size: 1354 [2019-10-07 15:13:01,572 WARN L191 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 660 [2019-10-07 15:13:02,693 WARN L191 SmtUtils]: Spent 1.12 s on a formula simplification that was a NOOP. DAG size: 1354 [2019-10-07 15:13:03,865 WARN L191 SmtUtils]: Spent 1.13 s on a formula simplification that was a NOOP. DAG size: 1356 [2019-10-07 15:13:04,990 WARN L191 SmtUtils]: Spent 1.12 s on a formula simplification that was a NOOP. DAG size: 1356 [2019-10-07 15:13:05,262 WARN L191 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 663 [2019-10-07 15:13:06,393 WARN L191 SmtUtils]: Spent 1.13 s on a formula simplification that was a NOOP. DAG size: 1358 [2019-10-07 15:13:07,743 WARN L191 SmtUtils]: Spent 1.32 s on a formula simplification that was a NOOP. DAG size: 1358 [2019-10-07 15:13:08,872 WARN L191 SmtUtils]: Spent 1.13 s on a formula simplification that was a NOOP. DAG size: 1358 [2019-10-07 15:13:09,147 WARN L191 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 663 [2019-10-07 15:13:10,259 WARN L191 SmtUtils]: Spent 1.11 s on a formula simplification that was a NOOP. DAG size: 1358 [2019-10-07 15:13:12,328 WARN L191 SmtUtils]: Spent 2.07 s on a formula simplification. DAG size of input: 1360 DAG size of output: 1356 [2019-10-07 15:13:13,466 WARN L191 SmtUtils]: Spent 1.13 s on a formula simplification that was a NOOP. DAG size: 1356 [2019-10-07 15:13:13,737 WARN L191 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 663 [2019-10-07 15:13:14,880 WARN L191 SmtUtils]: Spent 1.14 s on a formula simplification that was a NOOP. DAG size: 1358 [2019-10-07 15:13:16,057 WARN L191 SmtUtils]: Spent 1.17 s on a formula simplification that was a NOOP. DAG size: 1363 [2019-10-07 15:13:17,203 WARN L191 SmtUtils]: Spent 1.14 s on a formula simplification that was a NOOP. DAG size: 1363 [2019-10-07 15:13:17,505 WARN L191 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 663 [2019-10-07 15:13:18,655 WARN L191 SmtUtils]: Spent 1.15 s on a formula simplification that was a NOOP. DAG size: 1363 [2019-10-07 15:13:19,820 WARN L191 SmtUtils]: Spent 1.16 s on a formula simplification that was a NOOP. DAG size: 1365 [2019-10-07 15:13:21,000 WARN L191 SmtUtils]: Spent 1.18 s on a formula simplification that was a NOOP. DAG size: 1365 [2019-10-07 15:13:21,288 WARN L191 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 663 [2019-10-07 15:13:22,446 WARN L191 SmtUtils]: Spent 1.16 s on a formula simplification that was a NOOP. DAG size: 1365 [2019-10-07 15:13:24,723 WARN L191 SmtUtils]: Spent 2.22 s on a formula simplification. DAG size of input: 1356 DAG size of output: 1354 [2019-10-07 15:13:25,837 WARN L191 SmtUtils]: Spent 1.11 s on a formula simplification that was a NOOP. DAG size: 1354 [2019-10-07 15:13:26,118 WARN L191 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 660 [2019-10-07 15:13:27,229 WARN L191 SmtUtils]: Spent 1.11 s on a formula simplification that was a NOOP. DAG size: 1354 [2019-10-07 15:13:29,585 WARN L191 SmtUtils]: Spent 2.34 s on a formula simplification. DAG size of input: 1356 DAG size of output: 1354 [2019-10-07 15:13:30,714 WARN L191 SmtUtils]: Spent 1.13 s on a formula simplification that was a NOOP. DAG size: 1354 [2019-10-07 15:13:31,042 WARN L191 SmtUtils]: Spent 311.00 ms on a formula simplification that was a NOOP. DAG size: 660 [2019-10-07 15:13:32,169 WARN L191 SmtUtils]: Spent 1.13 s on a formula simplification that was a NOOP. DAG size: 1354 [2019-10-07 15:13:33,284 WARN L191 SmtUtils]: Spent 1.11 s on a formula simplification that was a NOOP. DAG size: 1354 [2019-10-07 15:13:34,422 WARN L191 SmtUtils]: Spent 1.13 s on a formula simplification that was a NOOP. DAG size: 1354 [2019-10-07 15:13:34,688 WARN L191 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 660 [2019-10-07 15:13:35,810 WARN L191 SmtUtils]: Spent 1.12 s on a formula simplification that was a NOOP. DAG size: 1354 [2019-10-07 15:13:37,904 WARN L191 SmtUtils]: Spent 2.06 s on a formula simplification. DAG size of input: 1356 DAG size of output: 1354 [2019-10-07 15:13:39,031 WARN L191 SmtUtils]: Spent 1.12 s on a formula simplification that was a NOOP. DAG size: 1354 [2019-10-07 15:13:39,305 WARN L191 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 660 [2019-10-07 15:13:40,426 WARN L191 SmtUtils]: Spent 1.12 s on a formula simplification that was a NOOP. DAG size: 1354 [2019-10-07 15:13:42,503 WARN L191 SmtUtils]: Spent 2.06 s on a formula simplification. DAG size of input: 1356 DAG size of output: 1354 [2019-10-07 15:13:43,624 WARN L191 SmtUtils]: Spent 1.12 s on a formula simplification that was a NOOP. DAG size: 1354 [2019-10-07 15:13:43,905 WARN L191 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 660 [2019-10-07 15:13:45,054 WARN L191 SmtUtils]: Spent 1.15 s on a formula simplification that was a NOOP. DAG size: 1354 [2019-10-07 15:13:46,189 WARN L191 SmtUtils]: Spent 1.13 s on a formula simplification that was a NOOP. DAG size: 1354 [2019-10-07 15:13:47,339 WARN L191 SmtUtils]: Spent 1.15 s on a formula simplification that was a NOOP. DAG size: 1354 [2019-10-07 15:13:47,605 WARN L191 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 660 [2019-10-07 15:13:48,728 WARN L191 SmtUtils]: Spent 1.12 s on a formula simplification that was a NOOP. DAG size: 1354 [2019-10-07 15:13:49,884 WARN L191 SmtUtils]: Spent 1.12 s on a formula simplification that was a NOOP. DAG size: 1358 [2019-10-07 15:13:51,030 WARN L191 SmtUtils]: Spent 1.14 s on a formula simplification that was a NOOP. DAG size: 1358 [2019-10-07 15:13:51,309 WARN L191 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 663 [2019-10-07 15:13:52,433 WARN L191 SmtUtils]: Spent 1.12 s on a formula simplification that was a NOOP. DAG size: 1358 [2019-10-07 15:13:54,498 WARN L191 SmtUtils]: Spent 2.04 s on a formula simplification. DAG size of input: 1360 DAG size of output: 1356 [2019-10-07 15:13:55,611 WARN L191 SmtUtils]: Spent 1.11 s on a formula simplification that was a NOOP. DAG size: 1356 [2019-10-07 15:13:55,885 WARN L191 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 663 [2019-10-07 15:13:57,018 WARN L191 SmtUtils]: Spent 1.13 s on a formula simplification that was a NOOP. DAG size: 1358 [2019-10-07 15:13:59,043 WARN L191 SmtUtils]: Spent 2.02 s on a formula simplification. DAG size of input: 1360 DAG size of output: 1356 [2019-10-07 15:14:00,160 WARN L191 SmtUtils]: Spent 1.11 s on a formula simplification that was a NOOP. DAG size: 1356 [2019-10-07 15:14:00,431 WARN L191 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 663 [2019-10-07 15:14:01,560 WARN L191 SmtUtils]: Spent 1.13 s on a formula simplification that was a NOOP. DAG size: 1358 [2019-10-07 15:14:03,608 WARN L191 SmtUtils]: Spent 2.04 s on a formula simplification. DAG size of input: 1365 DAG size of output: 1356 [2019-10-07 15:14:04,729 WARN L191 SmtUtils]: Spent 1.12 s on a formula simplification that was a NOOP. DAG size: 1356 [2019-10-07 15:14:05,011 WARN L191 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 663 [2019-10-07 15:14:06,134 WARN L191 SmtUtils]: Spent 1.12 s on a formula simplification that was a NOOP. DAG size: 1358 [2019-10-07 15:14:08,086 WARN L191 SmtUtils]: Spent 1.95 s on a formula simplification. DAG size of input: 1367 DAG size of output: 1358 [2019-10-07 15:14:09,206 WARN L191 SmtUtils]: Spent 1.12 s on a formula simplification that was a NOOP. DAG size: 1358 [2019-10-07 15:14:09,659 WARN L191 SmtUtils]: Spent 433.00 ms on a formula simplification that was a NOOP. DAG size: 663 [2019-10-07 15:14:10,799 WARN L191 SmtUtils]: Spent 1.14 s on a formula simplification that was a NOOP. DAG size: 1360 [2019-10-07 15:14:11,060 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 15:14:11,062 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 15:14:11,068 INFO L168 Benchmark]: Toolchain (without parser) took 261085.63 ms. Allocated memory was 142.1 MB in the beginning and 1.8 GB in the end (delta: 1.6 GB). Free memory was 102.9 MB in the beginning and 1.1 GB in the end (delta: -1.0 GB). Peak memory consumption was 610.7 MB. Max. memory is 7.1 GB. [2019-10-07 15:14:11,069 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 142.1 MB. Free memory was 124.1 MB in the beginning and 123.9 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2019-10-07 15:14:11,070 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1137.61 ms. Allocated memory was 142.1 MB in the beginning and 205.5 MB in the end (delta: 63.4 MB). Free memory was 102.7 MB in the beginning and 132.7 MB in the end (delta: -30.0 MB). Peak memory consumption was 38.7 MB. Max. memory is 7.1 GB. [2019-10-07 15:14:11,070 INFO L168 Benchmark]: Boogie Preprocessor took 196.73 ms. Allocated memory is still 205.5 MB. Free memory was 132.7 MB in the beginning and 123.6 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.1 MB. Max. memory is 7.1 GB. [2019-10-07 15:14:11,071 INFO L168 Benchmark]: RCFGBuilder took 4765.29 ms. Allocated memory was 205.5 MB in the beginning and 284.2 MB in the end (delta: 78.6 MB). Free memory was 123.6 MB in the beginning and 164.2 MB in the end (delta: -40.6 MB). Peak memory consumption was 114.8 MB. Max. memory is 7.1 GB. [2019-10-07 15:14:11,072 INFO L168 Benchmark]: TraceAbstraction took 254981.24 ms. Allocated memory was 284.2 MB in the beginning and 1.8 GB in the end (delta: 1.5 GB). Free memory was 164.2 MB in the beginning and 1.1 GB in the end (delta: -975.8 MB). Peak memory consumption was 529.9 MB. Max. memory is 7.1 GB. [2019-10-07 15:14:11,075 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 142.1 MB. Free memory was 124.1 MB in the beginning and 123.9 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1137.61 ms. Allocated memory was 142.1 MB in the beginning and 205.5 MB in the end (delta: 63.4 MB). Free memory was 102.7 MB in the beginning and 132.7 MB in the end (delta: -30.0 MB). Peak memory consumption was 38.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 196.73 ms. Allocated memory is still 205.5 MB. Free memory was 132.7 MB in the beginning and 123.6 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 4765.29 ms. Allocated memory was 205.5 MB in the beginning and 284.2 MB in the end (delta: 78.6 MB). Free memory was 123.6 MB in the beginning and 164.2 MB in the end (delta: -40.6 MB). Peak memory consumption was 114.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 254981.24 ms. Allocated memory was 284.2 MB in the beginning and 1.8 GB in the end (delta: 1.5 GB). Free memory was 164.2 MB in the beginning and 1.1 GB in the end (delta: -975.8 MB). Peak memory consumption was 529.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε: de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:295) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...