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_spec6_product31.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-36ac518-m [2019-10-07 15:02:52,142 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-07 15:02:52,145 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-07 15:02:52,157 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-07 15:02:52,157 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-07 15:02:52,158 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-07 15:02:52,160 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-07 15:02:52,161 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-07 15:02:52,166 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-07 15:02:52,167 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-07 15:02:52,168 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-07 15:02:52,169 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-07 15:02:52,169 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-07 15:02:52,170 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-07 15:02:52,171 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-07 15:02:52,172 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-07 15:02:52,173 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-07 15:02:52,174 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-07 15:02:52,175 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-07 15:02:52,179 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-07 15:02:52,181 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-07 15:02:52,182 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-07 15:02:52,185 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-07 15:02:52,186 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-07 15:02:52,188 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-07 15:02:52,188 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-07 15:02:52,188 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-07 15:02:52,189 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-07 15:02:52,191 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-07 15:02:52,192 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-07 15:02:52,192 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-07 15:02:52,193 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-07 15:02:52,194 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-07 15:02:52,195 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-07 15:02:52,199 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-07 15:02:52,199 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-07 15:02:52,200 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-07 15:02:52,200 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-07 15:02:52,200 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-07 15:02:52,202 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-07 15:02:52,205 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-07 15:02:52,206 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 15:02:52,226 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-07 15:02:52,227 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-07 15:02:52,229 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-07 15:02:52,229 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-07 15:02:52,229 INFO L138 SettingsManager]: * Use SBE=true [2019-10-07 15:02:52,230 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-07 15:02:52,230 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-07 15:02:52,230 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-07 15:02:52,230 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-07 15:02:52,230 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-07 15:02:52,231 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-07 15:02:52,232 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-07 15:02:52,232 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-07 15:02:52,232 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-07 15:02:52,233 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-07 15:02:52,233 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-07 15:02:52,233 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-07 15:02:52,233 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-07 15:02:52,233 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-07 15:02:52,234 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-07 15:02:52,234 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-07 15:02:52,234 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 15:02:52,234 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-07 15:02:52,234 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-07 15:02:52,235 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-07 15:02:52,235 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-07 15:02:52,235 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-07 15:02:52,235 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-07 15:02:52,235 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 15:02:52,541 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-07 15:02:52,554 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-07 15:02:52,557 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-07 15:02:52,559 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-07 15:02:52,559 INFO L275 PluginConnector]: CDTParser initialized [2019-10-07 15:02:52,560 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec6_product31.cil.c [2019-10-07 15:02:52,633 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/248879648/f42db1c1f1d249dbad4a3e9afd16cbfc/FLAGa6b704171 [2019-10-07 15:02:53,298 INFO L306 CDTParser]: Found 1 translation units. [2019-10-07 15:02:53,299 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec6_product31.cil.c [2019-10-07 15:02:53,334 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/248879648/f42db1c1f1d249dbad4a3e9afd16cbfc/FLAGa6b704171 [2019-10-07 15:02:53,546 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/248879648/f42db1c1f1d249dbad4a3e9afd16cbfc [2019-10-07 15:02:53,556 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-07 15:02:53,558 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-07 15:02:53,559 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-07 15:02:53,559 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-07 15:02:53,562 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-07 15:02:53,563 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 03:02:53" (1/1) ... [2019-10-07 15:02:53,565 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6af97dc1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:02:53, skipping insertion in model container [2019-10-07 15:02:53,565 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 03:02:53" (1/1) ... [2019-10-07 15:02:53,571 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-07 15:02:53,653 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-07 15:02:54,422 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 15:02:54,443 INFO L188 MainTranslator]: Completed pre-run [2019-10-07 15:02:54,573 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 15:02:54,669 INFO L192 MainTranslator]: Completed translation [2019-10-07 15:02:54,670 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:02:54 WrapperNode [2019-10-07 15:02:54,670 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-07 15:02:54,671 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-07 15:02:54,671 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-07 15:02:54,672 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-07 15:02:54,688 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:02:54" (1/1) ... [2019-10-07 15:02:54,689 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:02:54" (1/1) ... [2019-10-07 15:02:54,729 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:02:54" (1/1) ... [2019-10-07 15:02:54,730 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:02:54" (1/1) ... [2019-10-07 15:02:54,811 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:02:54" (1/1) ... [2019-10-07 15:02:54,842 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:02:54" (1/1) ... [2019-10-07 15:02:54,862 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:02:54" (1/1) ... [2019-10-07 15:02:54,884 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-07 15:02:54,885 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-07 15:02:54,886 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-07 15:02:54,886 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-07 15:02:54,893 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:02:54" (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 15:02:54,984 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-07 15:02:54,984 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-07 15:02:54,985 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-07 15:02:54,985 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-07 15:02:54,985 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-07 15:02:54,986 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Encrypt [2019-10-07 15:02:54,987 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Forward [2019-10-07 15:02:54,987 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-07 15:02:54,987 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-07 15:02:54,987 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-07 15:02:54,987 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-07 15:02:54,988 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-07 15:02:54,989 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-07 15:02:54,989 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-07 15:02:54,989 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-07 15:02:54,989 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-07 15:02:54,991 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-07 15:02:54,992 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-07 15:02:54,992 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-07 15:02:54,992 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-07 15:02:54,992 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-07 15:02:54,993 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-07 15:02:54,993 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-07 15:02:54,993 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-07 15:02:54,993 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-07 15:02:54,993 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-07 15:02:54,993 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-07 15:02:54,993 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-07 15:02:54,994 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-07 15:02:54,995 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-07 15:02:54,995 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-07 15:02:54,995 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-07 15:02:54,996 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-07 15:02:54,996 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-07 15:02:54,996 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-07 15:02:54,996 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-07 15:02:54,996 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-07 15:02:54,996 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-07 15:02:54,997 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-07 15:02:54,997 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-07 15:02:54,997 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-07 15:02:54,997 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-07 15:02:54,997 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-07 15:02:54,997 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-07 15:02:54,997 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-07 15:02:54,998 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-07 15:02:54,998 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-07 15:02:54,998 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-07 15:02:54,998 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-07 15:02:54,998 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-07 15:02:54,998 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-07 15:02:54,998 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-07 15:02:54,999 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-07 15:02:54,999 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-07 15:02:54,999 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-07 15:02:54,999 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-07 15:02:54,999 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-07 15:02:54,999 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-07 15:02:55,000 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-07 15:02:55,001 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-07 15:02:55,001 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-07 15:02:55,001 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-07 15:02:55,001 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-07 15:02:55,002 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-07 15:02:55,002 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-07 15:02:55,002 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-07 15:02:55,002 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-07 15:02:55,002 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-07 15:02:55,002 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-10-07 15:02:55,002 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-07 15:02:55,003 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-07 15:02:55,003 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Encrypt [2019-10-07 15:02:55,003 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-07 15:02:55,004 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-07 15:02:55,004 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-10-07 15:02:55,004 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Forward [2019-10-07 15:02:55,005 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Verify [2019-10-07 15:02:55,005 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-07 15:02:55,005 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-07 15:02:55,005 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-07 15:02:55,005 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-07 15:02:55,005 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-07 15:02:55,005 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-07 15:02:55,006 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-07 15:02:55,006 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-07 15:02:55,006 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-07 15:02:55,006 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-07 15:02:55,006 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-10-07 15:02:55,006 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-07 15:02:55,006 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptDecrypt_spec__1 [2019-10-07 15:02:55,007 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptDecrypt_spec__2 [2019-10-07 15:02:55,007 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-07 15:02:55,007 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-07 15:02:55,007 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-07 15:02:55,007 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-07 15:02:55,007 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-07 15:02:55,007 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-07 15:02:55,008 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-07 15:02:55,008 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-07 15:02:55,008 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-07 15:02:55,008 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-07 15:02:55,008 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-07 15:02:55,008 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-07 15:02:55,008 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-07 15:02:55,009 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-07 15:02:55,009 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-07 15:02:55,009 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-07 15:02:55,009 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-07 15:02:55,009 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-07 15:02:55,009 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-07 15:02:55,010 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-07 15:02:55,010 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-07 15:02:55,010 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-07 15:02:55,010 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-07 15:02:55,010 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-07 15:02:55,010 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-07 15:02:55,010 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-07 15:02:55,011 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-07 15:02:55,011 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-07 15:02:55,011 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-07 15:02:55,011 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-07 15:02:55,011 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-07 15:02:55,011 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-07 15:02:55,012 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-07 15:02:55,012 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-07 15:02:55,012 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-07 15:02:55,012 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-07 15:02:55,012 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-07 15:02:55,012 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-07 15:02:55,013 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-07 15:02:55,013 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-07 15:02:55,013 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-07 15:02:55,013 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-07 15:02:55,013 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-07 15:02:55,014 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-07 15:02:55,014 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-07 15:02:55,014 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Encrypt [2019-10-07 15:02:55,014 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Forward [2019-10-07 15:02:55,014 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-07 15:02:55,015 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-07 15:02:55,015 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-07 15:02:55,015 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-07 15:02:55,015 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-07 15:02:55,015 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-07 15:02:55,015 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-07 15:02:55,016 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-07 15:02:55,016 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-07 15:02:55,016 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-07 15:02:55,016 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-07 15:02:55,016 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-07 15:02:55,017 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-07 15:02:55,017 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-07 15:02:55,017 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-07 15:02:55,017 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-07 15:02:55,017 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-07 15:02:55,018 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-07 15:02:55,018 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-07 15:02:55,018 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-07 15:02:55,018 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-07 15:02:55,018 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-07 15:02:55,018 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-07 15:02:55,019 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-07 15:02:55,019 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-07 15:02:55,019 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-07 15:02:55,019 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-07 15:02:55,019 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-07 15:02:55,020 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-07 15:02:55,020 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-07 15:02:55,020 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-07 15:02:55,020 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-07 15:02:55,020 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-07 15:02:55,020 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-07 15:02:55,021 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-07 15:02:55,021 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-07 15:02:55,021 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-07 15:02:55,021 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-07 15:02:55,021 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-07 15:02:55,022 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-07 15:02:55,022 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-07 15:02:55,022 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-07 15:02:55,022 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-07 15:02:55,022 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-07 15:02:55,022 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-07 15:02:55,023 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-07 15:02:55,023 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-07 15:02:55,023 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-07 15:02:55,023 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-07 15:02:55,023 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-07 15:02:55,024 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-07 15:02:55,024 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-10-07 15:02:55,024 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-07 15:02:55,024 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-07 15:02:55,024 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-07 15:02:55,024 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-07 15:02:55,025 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-07 15:02:55,025 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-07 15:02:55,025 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-07 15:02:55,025 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-07 15:02:55,025 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-07 15:02:55,026 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-07 15:02:55,026 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-07 15:02:55,026 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-07 15:02:55,026 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-07 15:02:55,026 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-07 15:02:55,027 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-07 15:02:55,027 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-07 15:02:55,027 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-07 15:02:55,027 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-07 15:02:55,027 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-07 15:02:55,027 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-07 15:02:55,028 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-07 15:02:55,028 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-07 15:02:55,028 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-07 15:02:55,028 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-07 15:02:55,028 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-07 15:02:55,028 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-07 15:02:55,029 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-07 15:02:55,029 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-07 15:02:55,029 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-07 15:02:55,029 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-07 15:02:55,029 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-07 15:02:55,029 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-07 15:02:55,030 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-07 15:02:55,030 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-07 15:02:55,030 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-07 15:02:55,030 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-07 15:02:55,030 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-07 15:02:55,031 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-07 15:02:55,031 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-10-07 15:02:55,031 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-07 15:02:55,031 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptDecrypt_spec__1 [2019-10-07 15:02:55,031 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-07 15:02:55,031 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Encrypt [2019-10-07 15:02:55,032 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-10-07 15:02:55,032 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Forward [2019-10-07 15:02:55,032 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Verify [2019-10-07 15:02:55,032 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptDecrypt_spec__2 [2019-10-07 15:02:55,032 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-07 15:02:55,032 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-07 15:02:55,032 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-07 15:02:55,033 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-07 15:02:55,033 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-07 15:02:55,033 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-07 15:02:55,033 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-07 15:02:55,033 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-07 15:02:55,033 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-07 15:02:55,034 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-07 15:02:59,377 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-07 15:02:59,378 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-07 15:02:59,380 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 03:02:59 BoogieIcfgContainer [2019-10-07 15:02:59,380 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-07 15:02:59,381 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-07 15:02:59,381 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-07 15:02:59,384 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-07 15:02:59,384 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.10 03:02:53" (1/3) ... [2019-10-07 15:02:59,385 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16a3f33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 03:02:59, skipping insertion in model container [2019-10-07 15:02:59,385 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:02:54" (2/3) ... [2019-10-07 15:02:59,386 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16a3f33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 03:02:59, skipping insertion in model container [2019-10-07 15:02:59,386 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 03:02:59" (3/3) ... [2019-10-07 15:02:59,387 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec6_product31.cil.c [2019-10-07 15:02:59,397 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-07 15:02:59,407 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-07 15:02:59,418 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-07 15:02:59,448 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-07 15:02:59,448 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-07 15:02:59,449 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-07 15:02:59,449 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-07 15:02:59,449 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-07 15:02:59,449 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-07 15:02:59,449 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-07 15:02:59,449 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-07 15:02:59,479 INFO L276 IsEmpty]: Start isEmpty. Operand 417 states. [2019-10-07 15:02:59,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2019-10-07 15:02:59,498 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:02:59,499 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 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] [2019-10-07 15:02:59,501 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:02:59,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:02:59,507 INFO L82 PathProgramCache]: Analyzing trace with hash 275868644, now seen corresponding path program 1 times [2019-10-07 15:02:59,517 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:02:59,517 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:02:59,517 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:02:59,517 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:02:59,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:02:59,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:03:00,276 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-07 15:03:00,277 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:03:00,277 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:03:00,277 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-07 15:03:00,282 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-07 15:03:00,296 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-07 15:03:00,297 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-07 15:03:00,299 INFO L87 Difference]: Start difference. First operand 417 states. Second operand 2 states. [2019-10-07 15:03:00,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:03:00,370 INFO L93 Difference]: Finished difference Result 642 states and 763 transitions. [2019-10-07 15:03:00,370 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-07 15:03:00,371 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 147 [2019-10-07 15:03:00,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:03:00,392 INFO L225 Difference]: With dead ends: 642 [2019-10-07 15:03:00,392 INFO L226 Difference]: Without dead ends: 396 [2019-10-07 15:03:00,398 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 15:03:00,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 396 states. [2019-10-07 15:03:00,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 396 to 396. [2019-10-07 15:03:00,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 396 states. [2019-10-07 15:03:00,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 396 states to 396 states and 469 transitions. [2019-10-07 15:03:00,539 INFO L78 Accepts]: Start accepts. Automaton has 396 states and 469 transitions. Word has length 147 [2019-10-07 15:03:00,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:03:00,541 INFO L462 AbstractCegarLoop]: Abstraction has 396 states and 469 transitions. [2019-10-07 15:03:00,541 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-07 15:03:00,542 INFO L276 IsEmpty]: Start isEmpty. Operand 396 states and 469 transitions. [2019-10-07 15:03:00,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2019-10-07 15:03:00,554 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:03:00,555 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 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] [2019-10-07 15:03:00,555 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:03:00,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:03:00,556 INFO L82 PathProgramCache]: Analyzing trace with hash 1868310216, now seen corresponding path program 1 times [2019-10-07 15:03:00,556 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:03:00,556 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:03:00,557 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:03:00,557 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:03:00,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:03:00,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:03:00,786 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-07 15:03:00,786 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:03:00,786 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:03:00,787 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 15:03:00,789 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 15:03:00,789 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 15:03:00,789 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:03:00,789 INFO L87 Difference]: Start difference. First operand 396 states and 469 transitions. Second operand 3 states. [2019-10-07 15:03:00,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:03:00,840 INFO L93 Difference]: Finished difference Result 627 states and 733 transitions. [2019-10-07 15:03:00,840 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 15:03:00,840 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 148 [2019-10-07 15:03:00,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:03:00,851 INFO L225 Difference]: With dead ends: 627 [2019-10-07 15:03:00,851 INFO L226 Difference]: Without dead ends: 398 [2019-10-07 15:03:00,857 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 15:03:00,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 398 states. [2019-10-07 15:03:00,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 398 to 398. [2019-10-07 15:03:00,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 398 states. [2019-10-07 15:03:00,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 398 states to 398 states and 471 transitions. [2019-10-07 15:03:00,899 INFO L78 Accepts]: Start accepts. Automaton has 398 states and 471 transitions. Word has length 148 [2019-10-07 15:03:00,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:03:00,900 INFO L462 AbstractCegarLoop]: Abstraction has 398 states and 471 transitions. [2019-10-07 15:03:00,901 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 15:03:00,901 INFO L276 IsEmpty]: Start isEmpty. Operand 398 states and 471 transitions. [2019-10-07 15:03:00,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2019-10-07 15:03:00,907 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:03:00,908 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:03:00,908 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:03:00,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:03:00,908 INFO L82 PathProgramCache]: Analyzing trace with hash -150332791, now seen corresponding path program 1 times [2019-10-07 15:03:00,909 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:03:00,909 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:03:00,909 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:03:00,909 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:03:00,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:03:00,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:03:01,124 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-07 15:03:01,125 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:03:01,125 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:03:01,125 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 15:03:01,126 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 15:03:01,126 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 15:03:01,126 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:03:01,127 INFO L87 Difference]: Start difference. First operand 398 states and 471 transitions. Second operand 3 states. [2019-10-07 15:03:01,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:03:01,159 INFO L93 Difference]: Finished difference Result 778 states and 949 transitions. [2019-10-07 15:03:01,160 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 15:03:01,160 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153 [2019-10-07 15:03:01,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:03:01,164 INFO L225 Difference]: With dead ends: 778 [2019-10-07 15:03:01,164 INFO L226 Difference]: Without dead ends: 438 [2019-10-07 15:03:01,167 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 15:03:01,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 438 states. [2019-10-07 15:03:01,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 438 to 437. [2019-10-07 15:03:01,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 437 states. [2019-10-07 15:03:01,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 437 states to 437 states and 539 transitions. [2019-10-07 15:03:01,194 INFO L78 Accepts]: Start accepts. Automaton has 437 states and 539 transitions. Word has length 153 [2019-10-07 15:03:01,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:03:01,195 INFO L462 AbstractCegarLoop]: Abstraction has 437 states and 539 transitions. [2019-10-07 15:03:01,195 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 15:03:01,195 INFO L276 IsEmpty]: Start isEmpty. Operand 437 states and 539 transitions. [2019-10-07 15:03:01,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2019-10-07 15:03:01,199 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:03:01,199 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:03:01,200 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:03:01,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:03:01,200 INFO L82 PathProgramCache]: Analyzing trace with hash -1314254042, now seen corresponding path program 1 times [2019-10-07 15:03:01,201 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:03:01,201 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:03:01,201 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:03:01,271 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:03:01,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:03:01,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:03:01,928 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-10-07 15:03:01,929 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:03:01,929 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:03:01,929 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2019-10-07 15:03:01,930 INFO L442 AbstractCegarLoop]: Interpolant automaton has 24 states [2019-10-07 15:03:01,930 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2019-10-07 15:03:01,931 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=492, Unknown=0, NotChecked=0, Total=552 [2019-10-07 15:03:01,931 INFO L87 Difference]: Start difference. First operand 437 states and 539 transitions. Second operand 24 states. [2019-10-07 15:03:10,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:03:10,894 INFO L93 Difference]: Finished difference Result 1242 states and 1483 transitions. [2019-10-07 15:03:10,894 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2019-10-07 15:03:10,894 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 154 [2019-10-07 15:03:10,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:03:10,907 INFO L225 Difference]: With dead ends: 1242 [2019-10-07 15:03:10,907 INFO L226 Difference]: Without dead ends: 885 [2019-10-07 15:03:10,911 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 484 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=255, Invalid=2295, Unknown=0, NotChecked=0, Total=2550 [2019-10-07 15:03:10,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 885 states. [2019-10-07 15:03:10,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 885 to 876. [2019-10-07 15:03:10,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 876 states. [2019-10-07 15:03:10,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 876 states to 876 states and 1039 transitions. [2019-10-07 15:03:10,982 INFO L78 Accepts]: Start accepts. Automaton has 876 states and 1039 transitions. Word has length 154 [2019-10-07 15:03:10,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:03:10,983 INFO L462 AbstractCegarLoop]: Abstraction has 876 states and 1039 transitions. [2019-10-07 15:03:10,983 INFO L463 AbstractCegarLoop]: Interpolant automaton has 24 states. [2019-10-07 15:03:10,984 INFO L276 IsEmpty]: Start isEmpty. Operand 876 states and 1039 transitions. [2019-10-07 15:03:10,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2019-10-07 15:03:10,988 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:03:10,989 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:03:10,989 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:03:10,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:03:10,989 INFO L82 PathProgramCache]: Analyzing trace with hash 1356524406, now seen corresponding path program 1 times [2019-10-07 15:03:10,990 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:03:10,990 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:03:10,990 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:03:10,990 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:03:10,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:03:11,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:03:11,388 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-10-07 15:03:11,388 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:03:11,389 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:03:11,389 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2019-10-07 15:03:11,390 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-10-07 15:03:11,390 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-10-07 15:03:11,391 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2019-10-07 15:03:11,391 INFO L87 Difference]: Start difference. First operand 876 states and 1039 transitions. Second operand 14 states. [2019-10-07 15:03:15,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:03:15,431 INFO L93 Difference]: Finished difference Result 2008 states and 2350 transitions. [2019-10-07 15:03:15,431 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2019-10-07 15:03:15,431 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 160 [2019-10-07 15:03:15,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:03:15,440 INFO L225 Difference]: With dead ends: 2008 [2019-10-07 15:03:15,440 INFO L226 Difference]: Without dead ends: 1436 [2019-10-07 15:03:15,443 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 15:03:15,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1436 states. [2019-10-07 15:03:15,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1436 to 1366. [2019-10-07 15:03:15,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1366 states. [2019-10-07 15:03:15,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1366 states to 1366 states and 1604 transitions. [2019-10-07 15:03:15,527 INFO L78 Accepts]: Start accepts. Automaton has 1366 states and 1604 transitions. Word has length 160 [2019-10-07 15:03:15,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:03:15,528 INFO L462 AbstractCegarLoop]: Abstraction has 1366 states and 1604 transitions. [2019-10-07 15:03:15,528 INFO L463 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-10-07 15:03:15,528 INFO L276 IsEmpty]: Start isEmpty. Operand 1366 states and 1604 transitions. [2019-10-07 15:03:15,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2019-10-07 15:03:15,532 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:03:15,532 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:03:15,532 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:03:15,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:03:15,533 INFO L82 PathProgramCache]: Analyzing trace with hash -1467084693, now seen corresponding path program 1 times [2019-10-07 15:03:15,533 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:03:15,533 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:03:15,533 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:03:15,534 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:03:15,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:03:15,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:03:15,666 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-07 15:03:15,667 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:03:15,667 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:03:15,667 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 15:03:15,668 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 15:03:15,668 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 15:03:15,668 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:03:15,669 INFO L87 Difference]: Start difference. First operand 1366 states and 1604 transitions. Second operand 3 states. [2019-10-07 15:03:15,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:03:15,745 INFO L93 Difference]: Finished difference Result 2786 states and 3341 transitions. [2019-10-07 15:03:15,745 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 15:03:15,745 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 182 [2019-10-07 15:03:15,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:03:15,758 INFO L225 Difference]: With dead ends: 2786 [2019-10-07 15:03:15,758 INFO L226 Difference]: Without dead ends: 1478 [2019-10-07 15:03:15,764 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 15:03:15,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1478 states. [2019-10-07 15:03:15,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1478 to 1476. [2019-10-07 15:03:15,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1476 states. [2019-10-07 15:03:15,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1476 states to 1476 states and 1795 transitions. [2019-10-07 15:03:15,865 INFO L78 Accepts]: Start accepts. Automaton has 1476 states and 1795 transitions. Word has length 182 [2019-10-07 15:03:15,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:03:15,865 INFO L462 AbstractCegarLoop]: Abstraction has 1476 states and 1795 transitions. [2019-10-07 15:03:15,866 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 15:03:15,866 INFO L276 IsEmpty]: Start isEmpty. Operand 1476 states and 1795 transitions. [2019-10-07 15:03:15,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2019-10-07 15:03:15,873 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:03:15,874 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 3, 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] [2019-10-07 15:03:15,874 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:03:15,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:03:15,875 INFO L82 PathProgramCache]: Analyzing trace with hash -1409850039, now seen corresponding path program 1 times [2019-10-07 15:03:15,875 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:03:15,875 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:03:15,875 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:03:15,876 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:03:15,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:03:15,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:03:16,149 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2019-10-07 15:03:16,150 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:03:16,150 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:03:16,150 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 15:03:16,153 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 15:03:16,154 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 15:03:16,154 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:03:16,154 INFO L87 Difference]: Start difference. First operand 1476 states and 1795 transitions. Second operand 3 states. [2019-10-07 15:03:16,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:03:16,240 INFO L93 Difference]: Finished difference Result 3101 states and 3890 transitions. [2019-10-07 15:03:16,240 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 15:03:16,241 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 188 [2019-10-07 15:03:16,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:03:16,250 INFO L225 Difference]: With dead ends: 3101 [2019-10-07 15:03:16,251 INFO L226 Difference]: Without dead ends: 1683 [2019-10-07 15:03:16,255 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 15:03:16,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1683 states. [2019-10-07 15:03:16,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1683 to 1681. [2019-10-07 15:03:16,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1681 states. [2019-10-07 15:03:16,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1681 states to 1681 states and 2150 transitions. [2019-10-07 15:03:16,348 INFO L78 Accepts]: Start accepts. Automaton has 1681 states and 2150 transitions. Word has length 188 [2019-10-07 15:03:16,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:03:16,348 INFO L462 AbstractCegarLoop]: Abstraction has 1681 states and 2150 transitions. [2019-10-07 15:03:16,349 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 15:03:16,349 INFO L276 IsEmpty]: Start isEmpty. Operand 1681 states and 2150 transitions. [2019-10-07 15:03:16,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2019-10-07 15:03:16,354 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:03:16,355 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 3, 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] [2019-10-07 15:03:16,355 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:03:16,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:03:16,355 INFO L82 PathProgramCache]: Analyzing trace with hash -2073737266, now seen corresponding path program 1 times [2019-10-07 15:03:16,356 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:03:16,356 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:03:16,356 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:03:16,356 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:03:16,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:03:16,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:03:16,671 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2019-10-07 15:03:16,671 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:03:16,671 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:03:16,672 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-10-07 15:03:16,673 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-10-07 15:03:16,673 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-10-07 15:03:16,674 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2019-10-07 15:03:16,675 INFO L87 Difference]: Start difference. First operand 1681 states and 2150 transitions. Second operand 12 states. [2019-10-07 15:03:21,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:03:21,350 INFO L93 Difference]: Finished difference Result 3792 states and 4984 transitions. [2019-10-07 15:03:21,351 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2019-10-07 15:03:21,351 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 189 [2019-10-07 15:03:21,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:03:21,379 INFO L225 Difference]: With dead ends: 3792 [2019-10-07 15:03:21,380 INFO L226 Difference]: Without dead ends: 2746 [2019-10-07 15:03:21,387 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 137 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=170, Invalid=586, Unknown=0, NotChecked=0, Total=756 [2019-10-07 15:03:21,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2746 states. [2019-10-07 15:03:21,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2746 to 2075. [2019-10-07 15:03:21,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2075 states. [2019-10-07 15:03:21,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2075 states to 2075 states and 2843 transitions. [2019-10-07 15:03:21,658 INFO L78 Accepts]: Start accepts. Automaton has 2075 states and 2843 transitions. Word has length 189 [2019-10-07 15:03:21,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:03:21,658 INFO L462 AbstractCegarLoop]: Abstraction has 2075 states and 2843 transitions. [2019-10-07 15:03:21,658 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-10-07 15:03:21,658 INFO L276 IsEmpty]: Start isEmpty. Operand 2075 states and 2843 transitions. [2019-10-07 15:03:21,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2019-10-07 15:03:21,666 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:03:21,666 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:03:21,667 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:03:21,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:03:21,667 INFO L82 PathProgramCache]: Analyzing trace with hash -1277033729, now seen corresponding path program 1 times [2019-10-07 15:03:21,667 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:03:21,668 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:03:21,668 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:03:21,668 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:03:21,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:03:21,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:03:21,793 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-07 15:03:21,793 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:03:21,793 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:03:21,793 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 15:03:21,794 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 15:03:21,794 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 15:03:21,794 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:03:21,795 INFO L87 Difference]: Start difference. First operand 2075 states and 2843 transitions. Second operand 3 states. [2019-10-07 15:03:21,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:03:21,908 INFO L93 Difference]: Finished difference Result 4373 states and 6142 transitions. [2019-10-07 15:03:21,908 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 15:03:21,909 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 185 [2019-10-07 15:03:21,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:03:21,928 INFO L225 Difference]: With dead ends: 4373 [2019-10-07 15:03:21,928 INFO L226 Difference]: Without dead ends: 2360 [2019-10-07 15:03:21,937 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 15:03:21,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2360 states. [2019-10-07 15:03:22,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2360 to 2359. [2019-10-07 15:03:22,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2359 states. [2019-10-07 15:03:22,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2359 states to 2359 states and 3343 transitions. [2019-10-07 15:03:22,126 INFO L78 Accepts]: Start accepts. Automaton has 2359 states and 3343 transitions. Word has length 185 [2019-10-07 15:03:22,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:03:22,127 INFO L462 AbstractCegarLoop]: Abstraction has 2359 states and 3343 transitions. [2019-10-07 15:03:22,127 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 15:03:22,127 INFO L276 IsEmpty]: Start isEmpty. Operand 2359 states and 3343 transitions. [2019-10-07 15:03:22,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2019-10-07 15:03:22,142 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:03:22,142 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:03:22,142 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:03:22,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:03:22,143 INFO L82 PathProgramCache]: Analyzing trace with hash -413198012, now seen corresponding path program 1 times [2019-10-07 15:03:22,143 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:03:22,143 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:03:22,144 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:03:22,144 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:03:22,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:03:22,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:03:22,469 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-07 15:03:22,470 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:03:22,470 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:03:22,470 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-10-07 15:03:22,471 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-10-07 15:03:22,472 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-10-07 15:03:22,472 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2019-10-07 15:03:22,472 INFO L87 Difference]: Start difference. First operand 2359 states and 3343 transitions. Second operand 12 states. [2019-10-07 15:03:27,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:03:27,747 INFO L93 Difference]: Finished difference Result 4597 states and 6394 transitions. [2019-10-07 15:03:27,748 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2019-10-07 15:03:27,748 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 187 [2019-10-07 15:03:27,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:03:27,765 INFO L225 Difference]: With dead ends: 4597 [2019-10-07 15:03:27,766 INFO L226 Difference]: Without dead ends: 2877 [2019-10-07 15:03:27,773 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 137 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=170, Invalid=586, Unknown=0, NotChecked=0, Total=756 [2019-10-07 15:03:27,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2877 states. [2019-10-07 15:03:27,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2877 to 2206. [2019-10-07 15:03:27,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2206 states. [2019-10-07 15:03:27,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2206 states to 2206 states and 3062 transitions. [2019-10-07 15:03:27,933 INFO L78 Accepts]: Start accepts. Automaton has 2206 states and 3062 transitions. Word has length 187 [2019-10-07 15:03:27,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:03:27,933 INFO L462 AbstractCegarLoop]: Abstraction has 2206 states and 3062 transitions. [2019-10-07 15:03:27,934 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-10-07 15:03:27,934 INFO L276 IsEmpty]: Start isEmpty. Operand 2206 states and 3062 transitions. [2019-10-07 15:03:27,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2019-10-07 15:03:27,945 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:03:27,945 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:03:27,946 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:03:27,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:03:27,946 INFO L82 PathProgramCache]: Analyzing trace with hash 911593274, now seen corresponding path program 1 times [2019-10-07 15:03:27,946 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:03:27,946 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:03:27,947 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:03:27,947 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:03:27,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:03:28,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:03:28,671 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2019-10-07 15:03:28,672 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:03:28,672 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 15:03:28,672 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 15:03:29,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:03:29,289 INFO L256 TraceCheckSpWp]: Trace formula consists of 3000 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-07 15:03:29,318 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 15:03:29,456 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-07 15:03:29,457 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 15:03:29,826 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-07 15:03:29,827 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2019-10-07 15:03:29,862 INFO L162 IcfgInterpreter]: Started Sifa with 171 locations of interest [2019-10-07 15:03:29,863 INFO L169 IcfgInterpreter]: Building call graph [2019-10-07 15:03:29,870 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-07 15:03:29,878 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-07 15:03:29,879 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-07 15:04:50,486 WARN L191 SmtUtils]: Spent 345.00 ms on a formula simplification that was a NOOP. DAG size: 710 [2019-10-07 15:04:55,354 WARN L191 SmtUtils]: Spent 1.74 s on a formula simplification. DAG size of input: 363 DAG size of output: 295 [2019-10-07 15:04:55,729 WARN L191 SmtUtils]: Spent 365.00 ms on a formula simplification that was a NOOP. DAG size: 761 [2019-10-07 15:04:56,091 WARN L191 SmtUtils]: Spent 357.00 ms on a formula simplification that was a NOOP. DAG size: 761 [2019-10-07 15:04:56,340 WARN L191 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 761 [2019-10-07 15:04:56,492 WARN L191 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 457 [2019-10-07 15:04:57,220 WARN L191 SmtUtils]: Spent 726.00 ms on a formula simplification that was a NOOP. DAG size: 1064 [2019-10-07 15:04:57,946 WARN L191 SmtUtils]: Spent 707.00 ms on a formula simplification that was a NOOP. DAG size: 1064 [2019-10-07 15:04:58,659 WARN L191 SmtUtils]: Spent 709.00 ms on a formula simplification that was a NOOP. DAG size: 1064 [2019-10-07 15:04:58,798 WARN L191 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 457 [2019-10-07 15:04:59,511 WARN L191 SmtUtils]: Spent 710.00 ms on a formula simplification that was a NOOP. DAG size: 1064 [2019-10-07 15:05:00,733 WARN L191 SmtUtils]: Spent 1.20 s on a formula simplification. DAG size of input: 1066 DAG size of output: 1064 [2019-10-07 15:05:01,377 WARN L191 SmtUtils]: Spent 641.00 ms on a formula simplification that was a NOOP. DAG size: 1064 [2019-10-07 15:05:01,527 WARN L191 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 457 [2019-10-07 15:05:02,224 WARN L191 SmtUtils]: Spent 695.00 ms on a formula simplification that was a NOOP. DAG size: 1064 [2019-10-07 15:05:02,869 WARN L191 SmtUtils]: Spent 642.00 ms on a formula simplification that was a NOOP. DAG size: 1064 [2019-10-07 15:05:03,539 WARN L191 SmtUtils]: Spent 667.00 ms on a formula simplification that was a NOOP. DAG size: 1064 [2019-10-07 15:05:03,663 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 457 [2019-10-07 15:05:04,305 WARN L191 SmtUtils]: Spent 640.00 ms on a formula simplification that was a NOOP. DAG size: 1064 [2019-10-07 15:05:04,332 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 574 for LOIs [2019-10-07 15:05:04,710 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 674 [2019-10-07 15:05:04,822 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 674 [2019-10-07 15:05:04,963 WARN L191 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 457 [2019-10-07 15:05:05,431 WARN L191 SmtUtils]: Spent 466.00 ms on a formula simplification that was a NOOP. DAG size: 977 [2019-10-07 15:05:05,433 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 1107 for LOIs [2019-10-07 15:05:06,102 WARN L191 SmtUtils]: Spent 667.00 ms on a formula simplification that was a NOOP. DAG size: 1107 [2019-10-07 15:05:06,736 WARN L191 SmtUtils]: Spent 631.00 ms on a formula simplification that was a NOOP. DAG size: 1107 [2019-10-07 15:05:07,024 WARN L191 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 593 [2019-10-07 15:05:07,975 WARN L191 SmtUtils]: Spent 948.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 15:05:08,624 WARN L191 SmtUtils]: Spent 637.00 ms on a formula simplification that was a NOOP. DAG size: 1107 [2019-10-07 15:05:09,309 WARN L191 SmtUtils]: Spent 681.00 ms on a formula simplification that was a NOOP. DAG size: 1107 [2019-10-07 15:05:09,535 WARN L191 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 593 [2019-10-07 15:05:10,431 WARN L191 SmtUtils]: Spent 894.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 15:05:11,210 WARN L191 SmtUtils]: Spent 746.00 ms on a formula simplification that was a NOOP. DAG size: 1107 [2019-10-07 15:05:11,844 WARN L191 SmtUtils]: Spent 630.00 ms on a formula simplification that was a NOOP. DAG size: 1107 [2019-10-07 15:05:12,071 WARN L191 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 593 [2019-10-07 15:05:12,991 WARN L191 SmtUtils]: Spent 918.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 15:05:14,041 WARN L191 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 1246 DAG size of output: 1107 [2019-10-07 15:05:14,692 WARN L191 SmtUtils]: Spent 647.00 ms on a formula simplification that was a NOOP. DAG size: 1107 [2019-10-07 15:05:15,113 WARN L191 SmtUtils]: Spent 399.00 ms on a formula simplification. DAG size of input: 595 DAG size of output: 593 [2019-10-07 15:05:16,008 WARN L191 SmtUtils]: Spent 893.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 15:05:16,668 WARN L191 SmtUtils]: Spent 644.00 ms on a formula simplification that was a NOOP. DAG size: 1107 [2019-10-07 15:05:17,303 WARN L191 SmtUtils]: Spent 632.00 ms on a formula simplification that was a NOOP. DAG size: 1107 [2019-10-07 15:05:17,552 WARN L191 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 593 [2019-10-07 15:05:18,449 WARN L191 SmtUtils]: Spent 894.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 15:05:19,110 WARN L191 SmtUtils]: Spent 658.00 ms on a formula simplification that was a NOOP. DAG size: 1107 [2019-10-07 15:05:19,758 WARN L191 SmtUtils]: Spent 645.00 ms on a formula simplification that was a NOOP. DAG size: 1107 [2019-10-07 15:05:19,972 WARN L191 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 593 [2019-10-07 15:05:20,875 WARN L191 SmtUtils]: Spent 901.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 15:05:21,511 WARN L191 SmtUtils]: Spent 633.00 ms on a formula simplification that was a NOOP. DAG size: 1107 [2019-10-07 15:05:22,149 WARN L191 SmtUtils]: Spent 635.00 ms on a formula simplification that was a NOOP. DAG size: 1107 [2019-10-07 15:05:22,356 WARN L191 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 593 [2019-10-07 15:05:23,276 WARN L191 SmtUtils]: Spent 919.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 15:05:23,908 WARN L191 SmtUtils]: Spent 628.00 ms on a formula simplification that was a NOOP. DAG size: 1107 [2019-10-07 15:05:24,539 WARN L191 SmtUtils]: Spent 628.00 ms on a formula simplification that was a NOOP. DAG size: 1107 [2019-10-07 15:05:24,749 WARN L191 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 593 [2019-10-07 15:05:25,651 WARN L191 SmtUtils]: Spent 900.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 15:05:26,286 WARN L191 SmtUtils]: Spent 632.00 ms on a formula simplification that was a NOOP. DAG size: 1107 [2019-10-07 15:05:26,921 WARN L191 SmtUtils]: Spent 631.00 ms on a formula simplification that was a NOOP. DAG size: 1107 [2019-10-07 15:05:27,125 WARN L191 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 593 [2019-10-07 15:05:28,034 WARN L191 SmtUtils]: Spent 906.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 15:05:28,669 WARN L191 SmtUtils]: Spent 633.00 ms on a formula simplification that was a NOOP. DAG size: 1107 [2019-10-07 15:05:29,300 WARN L191 SmtUtils]: Spent 628.00 ms on a formula simplification that was a NOOP. DAG size: 1107 [2019-10-07 15:05:29,511 WARN L191 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 593 [2019-10-07 15:05:30,414 WARN L191 SmtUtils]: Spent 901.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 15:05:31,045 WARN L191 SmtUtils]: Spent 628.00 ms on a formula simplification that was a NOOP. DAG size: 1107 [2019-10-07 15:05:31,682 WARN L191 SmtUtils]: Spent 634.00 ms on a formula simplification that was a NOOP. DAG size: 1107 [2019-10-07 15:05:31,889 WARN L191 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 593 [2019-10-07 15:05:32,785 WARN L191 SmtUtils]: Spent 894.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 15:05:33,416 WARN L191 SmtUtils]: Spent 628.00 ms on a formula simplification that was a NOOP. DAG size: 1107 [2019-10-07 15:05:34,048 WARN L191 SmtUtils]: Spent 629.00 ms on a formula simplification that was a NOOP. DAG size: 1107 [2019-10-07 15:05:34,254 WARN L191 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 593 [2019-10-07 15:05:35,156 WARN L191 SmtUtils]: Spent 899.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 15:05:35,792 WARN L191 SmtUtils]: Spent 633.00 ms on a formula simplification that was a NOOP. DAG size: 1107 [2019-10-07 15:05:36,427 WARN L191 SmtUtils]: Spent 632.00 ms on a formula simplification that was a NOOP. DAG size: 1107 [2019-10-07 15:05:36,633 WARN L191 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 593 [2019-10-07 15:05:37,533 WARN L191 SmtUtils]: Spent 898.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 15:05:38,482 WARN L191 SmtUtils]: Spent 901.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 15:05:39,381 WARN L191 SmtUtils]: Spent 896.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 15:05:39,605 WARN L191 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 593 [2019-10-07 15:05:40,510 WARN L191 SmtUtils]: Spent 902.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 15:05:42,155 WARN L191 SmtUtils]: Spent 1.63 s on a formula simplification. DAG size of input: 1246 DAG size of output: 1244 [2019-10-07 15:05:43,052 WARN L191 SmtUtils]: Spent 893.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 15:05:43,274 WARN L191 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 593 [2019-10-07 15:05:44,166 WARN L191 SmtUtils]: Spent 890.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 15:05:45,066 WARN L191 SmtUtils]: Spent 896.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 15:05:45,972 WARN L191 SmtUtils]: Spent 903.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 15:05:46,183 WARN L191 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 593 [2019-10-07 15:05:47,078 WARN L191 SmtUtils]: Spent 893.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 15:05:48,043 WARN L191 SmtUtils]: Spent 920.00 ms on a formula simplification that was a NOOP. DAG size: 1246 [2019-10-07 15:05:48,943 WARN L191 SmtUtils]: Spent 896.00 ms on a formula simplification that was a NOOP. DAG size: 1246 [2019-10-07 15:05:49,159 WARN L191 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 596 [2019-10-07 15:05:50,062 WARN L191 SmtUtils]: Spent 901.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 15:05:51,726 WARN L191 SmtUtils]: Spent 1.64 s on a formula simplification. DAG size of input: 1250 DAG size of output: 1248 [2019-10-07 15:05:52,638 WARN L191 SmtUtils]: Spent 907.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 15:05:52,856 WARN L191 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 596 [2019-10-07 15:05:53,751 WARN L191 SmtUtils]: Spent 893.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 15:05:55,326 WARN L191 SmtUtils]: Spent 1.57 s on a formula simplification. DAG size of input: 1250 DAG size of output: 1246 [2019-10-07 15:05:56,248 WARN L191 SmtUtils]: Spent 917.00 ms on a formula simplification that was a NOOP. DAG size: 1246 [2019-10-07 15:05:56,464 WARN L191 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 596 [2019-10-07 15:05:57,385 WARN L191 SmtUtils]: Spent 918.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 15:05:58,516 WARN L191 SmtUtils]: Spent 1.12 s on a formula simplification that was a NOOP. DAG size: 1246 [2019-10-07 15:05:59,435 WARN L191 SmtUtils]: Spent 914.00 ms on a formula simplification that was a NOOP. DAG size: 1246 [2019-10-07 15:05:59,656 WARN L191 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 596 [2019-10-07 15:06:00,576 WARN L191 SmtUtils]: Spent 918.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 15:06:01,502 WARN L191 SmtUtils]: Spent 922.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 15:06:02,419 WARN L191 SmtUtils]: Spent 913.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 15:06:02,637 WARN L191 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 596 [2019-10-07 15:06:03,558 WARN L191 SmtUtils]: Spent 919.00 ms on a formula simplification that was a NOOP. DAG size: 1250 [2019-10-07 15:06:05,257 WARN L191 SmtUtils]: Spent 1.66 s on a formula simplification. DAG size of input: 1246 DAG size of output: 1244 [2019-10-07 15:06:06,175 WARN L191 SmtUtils]: Spent 914.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 15:06:06,403 WARN L191 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 593 [2019-10-07 15:06:07,320 WARN L191 SmtUtils]: Spent 915.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 15:06:09,296 WARN L191 SmtUtils]: Spent 1.96 s on a formula simplification. DAG size of input: 1246 DAG size of output: 1244 [2019-10-07 15:06:10,206 WARN L191 SmtUtils]: Spent 906.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 15:06:10,431 WARN L191 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 593 [2019-10-07 15:06:11,354 WARN L191 SmtUtils]: Spent 921.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 15:06:12,274 WARN L191 SmtUtils]: Spent 916.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 15:06:13,184 WARN L191 SmtUtils]: Spent 907.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 15:06:13,394 WARN L191 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 593 [2019-10-07 15:06:14,305 WARN L191 SmtUtils]: Spent 908.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 15:06:15,991 WARN L191 SmtUtils]: Spent 1.65 s on a formula simplification. DAG size of input: 1246 DAG size of output: 1244 [2019-10-07 15:06:16,912 WARN L191 SmtUtils]: Spent 917.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 15:06:17,154 WARN L191 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 593 [2019-10-07 15:06:18,064 WARN L191 SmtUtils]: Spent 908.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 15:06:19,727 WARN L191 SmtUtils]: Spent 1.65 s on a formula simplification. DAG size of input: 1246 DAG size of output: 1244 [2019-10-07 15:06:20,641 WARN L191 SmtUtils]: Spent 909.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 15:06:20,868 WARN L191 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 593 [2019-10-07 15:06:21,785 WARN L191 SmtUtils]: Spent 916.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 15:06:22,698 WARN L191 SmtUtils]: Spent 909.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 15:06:23,611 WARN L191 SmtUtils]: Spent 909.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 15:06:23,824 WARN L191 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 593 [2019-10-07 15:06:24,738 WARN L191 SmtUtils]: Spent 911.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 15:06:26,333 WARN L191 SmtUtils]: Spent 1.56 s on a formula simplification. DAG size of input: 1250 DAG size of output: 1246 [2019-10-07 15:06:27,253 WARN L191 SmtUtils]: Spent 915.00 ms on a formula simplification that was a NOOP. DAG size: 1246 [2019-10-07 15:06:27,471 WARN L191 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 596 [2019-10-07 15:06:28,403 WARN L191 SmtUtils]: Spent 930.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 15:06:30,092 WARN L191 SmtUtils]: Spent 1.67 s on a formula simplification. DAG size of input: 1250 DAG size of output: 1248 [2019-10-07 15:06:31,012 WARN L191 SmtUtils]: Spent 916.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 15:06:31,231 WARN L191 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 596 [2019-10-07 15:06:32,161 WARN L191 SmtUtils]: Spent 929.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 15:06:33,734 WARN L191 SmtUtils]: Spent 1.57 s on a formula simplification. DAG size of input: 1250 DAG size of output: 1246 [2019-10-07 15:06:34,656 WARN L191 SmtUtils]: Spent 915.00 ms on a formula simplification that was a NOOP. DAG size: 1246 [2019-10-07 15:06:34,869 WARN L191 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 596 [2019-10-07 15:06:35,789 WARN L191 SmtUtils]: Spent 918.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 15:06:37,367 WARN L191 SmtUtils]: Spent 1.57 s on a formula simplification. DAG size of input: 1250 DAG size of output: 1246 [2019-10-07 15:06:38,289 WARN L191 SmtUtils]: Spent 919.00 ms on a formula simplification that was a NOOP. DAG size: 1246 [2019-10-07 15:06:38,529 WARN L191 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 596 [2019-10-07 15:06:39,447 WARN L191 SmtUtils]: Spent 916.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 15:06:41,130 WARN L191 SmtUtils]: Spent 1.68 s on a formula simplification. DAG size of input: 1252 DAG size of output: 1248 [2019-10-07 15:06:42,058 WARN L191 SmtUtils]: Spent 924.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 15:06:42,279 WARN L191 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 596 [2019-10-07 15:06:43,194 WARN L191 SmtUtils]: Spent 913.00 ms on a formula simplification that was a NOOP. DAG size: 1250 [2019-10-07 15:06:43,468 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 15:06:43,469 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 15:06:43,477 INFO L168 Benchmark]: Toolchain (without parser) took 229918.72 ms. Allocated memory was 143.1 MB in the beginning and 706.2 MB in the end (delta: 563.1 MB). Free memory was 98.4 MB in the beginning and 61.5 MB in the end (delta: 36.9 MB). Peak memory consumption was 600.0 MB. Max. memory is 7.1 GB. [2019-10-07 15:06:43,477 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 143.1 MB. Free memory was 119.5 MB in the beginning and 119.3 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2019-10-07 15:06:43,478 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1112.25 ms. Allocated memory was 143.1 MB in the beginning and 199.8 MB in the end (delta: 56.6 MB). Free memory was 98.2 MB in the beginning and 126.7 MB in the end (delta: -28.5 MB). Peak memory consumption was 36.2 MB. Max. memory is 7.1 GB. [2019-10-07 15:06:43,479 INFO L168 Benchmark]: Boogie Preprocessor took 212.64 ms. Allocated memory is still 199.8 MB. Free memory was 126.7 MB in the beginning and 117.9 MB in the end (delta: 8.8 MB). Peak memory consumption was 8.8 MB. Max. memory is 7.1 GB. [2019-10-07 15:06:43,479 INFO L168 Benchmark]: RCFGBuilder took 4494.37 ms. Allocated memory was 199.8 MB in the beginning and 309.9 MB in the end (delta: 110.1 MB). Free memory was 117.1 MB in the beginning and 112.7 MB in the end (delta: 4.4 MB). Peak memory consumption was 114.5 MB. Max. memory is 7.1 GB. [2019-10-07 15:06:43,480 INFO L168 Benchmark]: TraceAbstraction took 224093.87 ms. Allocated memory was 309.9 MB in the beginning and 706.2 MB in the end (delta: 396.4 MB). Free memory was 112.7 MB in the beginning and 61.5 MB in the end (delta: 51.2 MB). Peak memory consumption was 447.6 MB. Max. memory is 7.1 GB. [2019-10-07 15:06:43,483 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 143.1 MB. Free memory was 119.5 MB in the beginning and 119.3 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1112.25 ms. Allocated memory was 143.1 MB in the beginning and 199.8 MB in the end (delta: 56.6 MB). Free memory was 98.2 MB in the beginning and 126.7 MB in the end (delta: -28.5 MB). Peak memory consumption was 36.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 212.64 ms. Allocated memory is still 199.8 MB. Free memory was 126.7 MB in the beginning and 117.9 MB in the end (delta: 8.8 MB). Peak memory consumption was 8.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 4494.37 ms. Allocated memory was 199.8 MB in the beginning and 309.9 MB in the end (delta: 110.1 MB). Free memory was 117.1 MB in the beginning and 112.7 MB in the end (delta: 4.4 MB). Peak memory consumption was 114.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 224093.87 ms. Allocated memory was 309.9 MB in the beginning and 706.2 MB in the end (delta: 396.4 MB). Free memory was 112.7 MB in the beginning and 61.5 MB in the end (delta: 51.2 MB). Peak memory consumption was 447.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε: de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:295) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...