java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --traceabstraction.trace.refinement.strategy SIFA_TAIPAN --sifa.abstract.domain CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/product-lines/email_spec27_product19.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 03:13:07,344 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 03:13:07,347 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 03:13:07,365 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 03:13:07,365 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 03:13:07,367 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 03:13:07,369 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 03:13:07,379 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 03:13:07,385 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 03:13:07,387 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 03:13:07,390 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 03:13:07,391 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 03:13:07,391 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 03:13:07,394 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 03:13:07,396 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 03:13:07,398 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 03:13:07,399 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 03:13:07,400 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 03:13:07,402 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 03:13:07,407 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 03:13:07,411 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 03:13:07,414 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 03:13:07,417 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 03:13:07,418 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 03:13:07,421 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 03:13:07,421 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 03:13:07,421 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 03:13:07,423 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 03:13:07,424 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 03:13:07,425 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 03:13:07,425 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 03:13:07,427 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 03:13:07,428 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 03:13:07,429 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 03:13:07,431 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 03:13:07,431 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 03:13:07,432 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 03:13:07,432 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 03:13:07,432 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 03:13:07,433 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 03:13:07,435 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 03:13:07,435 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 [2019-10-15 03:13:07,463 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 03:13:07,463 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 03:13:07,464 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 03:13:07,465 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 03:13:07,465 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 03:13:07,465 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 03:13:07,465 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 03:13:07,466 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 03:13:07,466 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 03:13:07,466 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 03:13:07,466 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 03:13:07,467 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 03:13:07,467 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 03:13:07,467 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 03:13:07,467 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 03:13:07,467 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 03:13:07,468 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 03:13:07,468 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 03:13:07,468 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 03:13:07,468 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 03:13:07,468 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 03:13:07,469 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 03:13:07,469 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 03:13:07,469 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 03:13:07,469 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 03:13:07,469 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 03:13:07,470 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 03:13:07,470 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 03:13:07,470 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 [2019-10-15 03:13:07,745 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 03:13:07,759 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 03:13:07,762 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 03:13:07,764 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 03:13:07,765 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 03:13:07,765 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec27_product19.cil.c [2019-10-15 03:13:07,831 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8614df674/22effbad508a42db8a9789cac2bb9b39/FLAG7d81ec27b [2019-10-15 03:13:08,476 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 03:13:08,478 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec27_product19.cil.c [2019-10-15 03:13:08,512 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8614df674/22effbad508a42db8a9789cac2bb9b39/FLAG7d81ec27b [2019-10-15 03:13:08,702 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8614df674/22effbad508a42db8a9789cac2bb9b39 [2019-10-15 03:13:08,712 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 03:13:08,713 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 03:13:08,714 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 03:13:08,714 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 03:13:08,718 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 03:13:08,719 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:13:08" (1/1) ... [2019-10-15 03:13:08,722 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@528d6d3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:13:08, skipping insertion in model container [2019-10-15 03:13:08,722 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:13:08" (1/1) ... [2019-10-15 03:13:08,732 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 03:13:08,814 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 03:13:09,596 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 03:13:09,616 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 03:13:09,764 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 03:13:09,880 INFO L192 MainTranslator]: Completed translation [2019-10-15 03:13:09,880 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:13:09 WrapperNode [2019-10-15 03:13:09,881 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 03:13:09,882 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 03:13:09,882 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 03:13:09,882 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 03:13:09,898 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:13:09" (1/1) ... [2019-10-15 03:13:09,898 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:13:09" (1/1) ... [2019-10-15 03:13:09,964 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:13:09" (1/1) ... [2019-10-15 03:13:09,965 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:13:09" (1/1) ... [2019-10-15 03:13:10,030 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:13:09" (1/1) ... [2019-10-15 03:13:10,053 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:13:09" (1/1) ... [2019-10-15 03:13:10,065 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:13:09" (1/1) ... [2019-10-15 03:13:10,081 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 03:13:10,081 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 03:13:10,082 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 03:13:10,082 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 03:13:10,083 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:13:09" (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 [2019-10-15 03:13:10,182 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 03:13:10,182 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 03:13:10,183 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-15 03:13:10,183 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-15 03:13:10,183 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-15 03:13:10,183 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-15 03:13:10,184 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-15 03:13:10,187 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-15 03:13:10,187 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-15 03:13:10,187 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__VerifyForward_spec__1 [2019-10-15 03:13:10,188 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-15 03:13:10,189 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-15 03:13:10,189 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-15 03:13:10,189 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-15 03:13:10,189 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-15 03:13:10,190 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-15 03:13:10,192 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-15 03:13:10,193 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-15 03:13:10,193 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-15 03:13:10,193 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-15 03:13:10,193 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-15 03:13:10,194 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-15 03:13:10,194 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-15 03:13:10,194 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 03:13:10,194 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-15 03:13:10,195 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-15 03:13:10,195 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-15 03:13:10,195 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-15 03:13:10,195 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-15 03:13:10,195 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-15 03:13:10,195 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-15 03:13:10,196 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-15 03:13:10,196 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-15 03:13:10,196 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-10-15 03:13:10,197 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-15 03:13:10,197 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-15 03:13:10,197 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-15 03:13:10,197 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Forward [2019-10-15 03:13:10,197 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-15 03:13:10,198 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-15 03:13:10,198 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-15 03:13:10,198 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-15 03:13:10,198 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-15 03:13:10,198 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-15 03:13:10,198 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-15 03:13:10,199 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-15 03:13:10,199 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-15 03:13:10,199 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-15 03:13:10,199 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-15 03:13:10,199 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-15 03:13:10,199 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-15 03:13:10,200 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-15 03:13:10,200 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-15 03:13:10,200 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-15 03:13:10,200 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-15 03:13:10,200 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-15 03:13:10,201 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-15 03:13:10,201 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-15 03:13:10,201 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-15 03:13:10,202 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-15 03:13:10,202 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-15 03:13:10,202 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-15 03:13:10,202 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-15 03:13:10,203 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-15 03:13:10,203 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-15 03:13:10,203 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-15 03:13:10,203 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-15 03:13:10,203 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-15 03:13:10,203 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-15 03:13:10,204 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-15 03:13:10,204 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-15 03:13:10,204 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-15 03:13:10,205 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-15 03:13:10,206 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-15 03:13:10,206 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-15 03:13:10,206 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-15 03:13:10,207 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-15 03:13:10,207 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-15 03:13:10,207 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-15 03:13:10,207 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-15 03:13:10,208 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-15 03:13:10,208 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-15 03:13:10,208 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-15 03:13:10,209 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-15 03:13:10,209 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-15 03:13:10,209 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-15 03:13:10,209 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-15 03:13:10,210 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-15 03:13:10,210 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-15 03:13:10,211 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-15 03:13:10,211 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-15 03:13:10,211 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-15 03:13:10,211 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-15 03:13:10,211 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-15 03:13:10,212 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-15 03:13:10,212 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-15 03:13:10,212 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-15 03:13:10,212 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-10-15 03:13:10,212 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Forward [2019-10-15 03:13:10,212 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-15 03:13:10,213 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-15 03:13:10,213 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-15 03:13:10,213 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-15 03:13:10,213 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-15 03:13:10,213 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-15 03:13:10,214 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-15 03:13:10,214 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-15 03:13:10,214 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-15 03:13:10,214 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-15 03:13:10,214 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-10-15 03:13:10,215 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-15 03:13:10,215 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 03:13:10,215 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 03:13:10,215 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-15 03:13:10,215 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-15 03:13:10,216 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 03:13:10,216 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-15 03:13:10,217 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-15 03:13:10,217 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 03:13:10,217 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 03:13:10,218 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 03:13:10,218 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-15 03:13:10,218 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 03:13:10,218 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-15 03:13:10,220 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-15 03:13:10,220 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 03:13:10,220 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-15 03:13:10,220 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-15 03:13:10,220 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 03:13:10,220 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-15 03:13:10,221 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-15 03:13:10,221 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-15 03:13:10,222 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-15 03:13:10,222 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-15 03:13:10,225 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-15 03:13:10,226 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__VerifyForward_spec__1 [2019-10-15 03:13:10,226 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-15 03:13:10,226 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-15 03:13:10,227 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-15 03:13:10,227 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-15 03:13:10,227 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-15 03:13:10,227 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-15 03:13:10,227 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-15 03:13:10,228 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-15 03:13:10,235 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-15 03:13:10,236 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-15 03:13:10,236 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-15 03:13:10,236 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-15 03:13:10,237 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-15 03:13:10,237 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-15 03:13:10,237 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-15 03:13:10,237 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-15 03:13:10,237 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-15 03:13:10,237 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-15 03:13:10,237 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-15 03:13:10,238 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-15 03:13:10,238 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-15 03:13:10,238 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-15 03:13:10,238 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-15 03:13:10,238 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-15 03:13:10,238 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-15 03:13:10,238 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-15 03:13:10,238 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 03:13:10,239 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-15 03:13:10,239 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-15 03:13:10,239 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-15 03:13:10,239 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-15 03:13:10,239 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-15 03:13:10,239 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-15 03:13:10,239 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-15 03:13:10,240 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-15 03:13:10,240 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-15 03:13:10,240 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-10-15 03:13:10,240 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-15 03:13:10,240 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-15 03:13:10,240 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-15 03:13:10,240 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-15 03:13:10,241 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-15 03:13:10,241 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-15 03:13:10,241 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-15 03:13:10,241 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-15 03:13:10,241 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-15 03:13:10,241 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-15 03:13:10,241 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-15 03:13:10,242 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-15 03:13:10,242 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-15 03:13:10,242 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-15 03:13:10,242 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Forward [2019-10-15 03:13:10,242 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-15 03:13:10,242 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-15 03:13:10,242 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-15 03:13:10,243 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-15 03:13:10,243 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-15 03:13:10,243 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-15 03:13:10,243 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-15 03:13:10,243 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-15 03:13:10,243 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-15 03:13:10,243 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-15 03:13:10,243 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-15 03:13:10,244 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-15 03:13:10,244 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-15 03:13:10,244 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-15 03:13:10,244 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-15 03:13:10,244 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-15 03:13:10,244 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-15 03:13:10,244 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-15 03:13:10,245 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-15 03:13:10,245 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-15 03:13:10,245 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-15 03:13:10,245 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-15 03:13:10,245 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-15 03:13:10,245 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-15 03:13:10,245 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-15 03:13:10,246 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-15 03:13:10,246 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-15 03:13:10,246 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-15 03:13:10,246 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-15 03:13:10,246 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-15 03:13:10,246 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-15 03:13:10,246 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-15 03:13:10,247 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-15 03:13:10,247 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-15 03:13:10,247 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-15 03:13:10,247 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-15 03:13:10,247 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-15 03:13:10,247 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-15 03:13:10,247 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-15 03:13:10,247 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-15 03:13:10,248 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-15 03:13:10,248 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-10-15 03:13:10,248 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-15 03:13:10,248 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-15 03:13:10,248 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-10-15 03:13:10,248 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Forward [2019-10-15 03:13:10,248 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 03:13:10,249 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-15 03:13:10,249 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 03:13:15,064 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 03:13:15,067 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-15 03:13:15,070 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:13:15 BoogieIcfgContainer [2019-10-15 03:13:15,070 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 03:13:15,071 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 03:13:15,071 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 03:13:15,074 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 03:13:15,075 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 03:13:08" (1/3) ... [2019-10-15 03:13:15,076 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@748b6f5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:13:15, skipping insertion in model container [2019-10-15 03:13:15,076 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:13:09" (2/3) ... [2019-10-15 03:13:15,077 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@748b6f5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:13:15, skipping insertion in model container [2019-10-15 03:13:15,077 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:13:15" (3/3) ... [2019-10-15 03:13:15,079 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec27_product19.cil.c [2019-10-15 03:13:15,089 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 03:13:15,099 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 03:13:15,111 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 03:13:15,153 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 03:13:15,153 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 03:13:15,154 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 03:13:15,154 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 03:13:15,154 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 03:13:15,154 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 03:13:15,154 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 03:13:15,155 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 03:13:15,199 INFO L276 IsEmpty]: Start isEmpty. Operand 361 states. [2019-10-15 03:13:15,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2019-10-15 03:13:15,233 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:13:15,236 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:13:15,238 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:13:15,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:13:15,247 INFO L82 PathProgramCache]: Analyzing trace with hash 1868884875, now seen corresponding path program 1 times [2019-10-15 03:13:15,255 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:13:15,255 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [40584247] [2019-10-15 03:13:15,256 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:13:15,256 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:13:15,256 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:13:15,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:13:15,888 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-15 03:13:15,888 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [40584247] [2019-10-15 03:13:15,890 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:13:15,890 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-15 03:13:15,890 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1805627814] [2019-10-15 03:13:15,898 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-15 03:13:15,899 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:13:15,913 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-15 03:13:15,914 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 03:13:15,916 INFO L87 Difference]: Start difference. First operand 361 states. Second operand 2 states. [2019-10-15 03:13:15,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:13:15,977 INFO L93 Difference]: Finished difference Result 530 states and 623 transitions. [2019-10-15 03:13:15,978 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-15 03:13:15,979 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 143 [2019-10-15 03:13:15,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:13:15,999 INFO L225 Difference]: With dead ends: 530 [2019-10-15 03:13:16,000 INFO L226 Difference]: Without dead ends: 340 [2019-10-15 03:13:16,005 INFO L600 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 [2019-10-15 03:13:16,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2019-10-15 03:13:16,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 340. [2019-10-15 03:13:16,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 340 states. [2019-10-15 03:13:16,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 340 states and 398 transitions. [2019-10-15 03:13:16,097 INFO L78 Accepts]: Start accepts. Automaton has 340 states and 398 transitions. Word has length 143 [2019-10-15 03:13:16,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:13:16,099 INFO L462 AbstractCegarLoop]: Abstraction has 340 states and 398 transitions. [2019-10-15 03:13:16,099 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-15 03:13:16,099 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states and 398 transitions. [2019-10-15 03:13:16,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2019-10-15 03:13:16,104 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:13:16,104 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:13:16,105 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:13:16,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:13:16,105 INFO L82 PathProgramCache]: Analyzing trace with hash 2087298503, now seen corresponding path program 1 times [2019-10-15 03:13:16,105 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:13:16,106 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2140845226] [2019-10-15 03:13:16,106 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:13:16,106 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:13:16,106 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:13:16,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:13:16,370 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-15 03:13:16,370 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2140845226] [2019-10-15 03:13:16,370 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:13:16,371 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:13:16,371 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065968522] [2019-10-15 03:13:16,375 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:13:16,375 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:13:16,375 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:13:16,376 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:13:16,376 INFO L87 Difference]: Start difference. First operand 340 states and 398 transitions. Second operand 3 states. [2019-10-15 03:13:16,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:13:16,434 INFO L93 Difference]: Finished difference Result 515 states and 591 transitions. [2019-10-15 03:13:16,435 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:13:16,435 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 144 [2019-10-15 03:13:16,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:13:16,440 INFO L225 Difference]: With dead ends: 515 [2019-10-15 03:13:16,440 INFO L226 Difference]: Without dead ends: 342 [2019-10-15 03:13:16,443 INFO L600 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 [2019-10-15 03:13:16,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 342 states. [2019-10-15 03:13:16,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 342 to 342. [2019-10-15 03:13:16,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 342 states. [2019-10-15 03:13:16,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342 states to 342 states and 400 transitions. [2019-10-15 03:13:16,507 INFO L78 Accepts]: Start accepts. Automaton has 342 states and 400 transitions. Word has length 144 [2019-10-15 03:13:16,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:13:16,509 INFO L462 AbstractCegarLoop]: Abstraction has 342 states and 400 transitions. [2019-10-15 03:13:16,509 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:13:16,509 INFO L276 IsEmpty]: Start isEmpty. Operand 342 states and 400 transitions. [2019-10-15 03:13:16,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2019-10-15 03:13:16,514 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:13:16,515 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:13:16,515 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:13:16,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:13:16,515 INFO L82 PathProgramCache]: Analyzing trace with hash -1934840532, now seen corresponding path program 1 times [2019-10-15 03:13:16,516 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:13:16,516 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [349233768] [2019-10-15 03:13:16,516 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:13:16,516 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:13:16,516 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:13:16,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:13:16,753 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-15 03:13:16,753 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [349233768] [2019-10-15 03:13:16,753 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:13:16,753 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:13:16,754 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [343676403] [2019-10-15 03:13:16,756 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:13:16,756 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:13:16,757 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:13:16,757 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:13:16,757 INFO L87 Difference]: Start difference. First operand 342 states and 400 transitions. Second operand 3 states. [2019-10-15 03:13:16,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:13:16,818 INFO L93 Difference]: Finished difference Result 666 states and 807 transitions. [2019-10-15 03:13:16,819 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:13:16,820 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 149 [2019-10-15 03:13:16,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:13:16,831 INFO L225 Difference]: With dead ends: 666 [2019-10-15 03:13:16,832 INFO L226 Difference]: Without dead ends: 382 [2019-10-15 03:13:16,837 INFO L600 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 [2019-10-15 03:13:16,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 382 states. [2019-10-15 03:13:16,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 382 to 381. [2019-10-15 03:13:16,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 381 states. [2019-10-15 03:13:16,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 468 transitions. [2019-10-15 03:13:16,894 INFO L78 Accepts]: Start accepts. Automaton has 381 states and 468 transitions. Word has length 149 [2019-10-15 03:13:16,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:13:16,896 INFO L462 AbstractCegarLoop]: Abstraction has 381 states and 468 transitions. [2019-10-15 03:13:16,896 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:13:16,896 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 468 transitions. [2019-10-15 03:13:16,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2019-10-15 03:13:16,906 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:13:16,906 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:13:16,906 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:13:16,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:13:16,907 INFO L82 PathProgramCache]: Analyzing trace with hash -188162591, now seen corresponding path program 1 times [2019-10-15 03:13:16,907 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:13:16,907 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1907326067] [2019-10-15 03:13:16,907 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:13:16,908 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:13:16,908 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:13:17,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:13:17,247 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-15 03:13:17,247 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1907326067] [2019-10-15 03:13:17,247 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:13:17,248 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-15 03:13:17,248 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090238904] [2019-10-15 03:13:17,249 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-15 03:13:17,250 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:13:17,250 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-15 03:13:17,251 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-15 03:13:17,252 INFO L87 Difference]: Start difference. First operand 381 states and 468 transitions. Second operand 8 states. [2019-10-15 03:13:17,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:13:17,357 INFO L93 Difference]: Finished difference Result 542 states and 648 transitions. [2019-10-15 03:13:17,358 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-15 03:13:17,358 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 150 [2019-10-15 03:13:17,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:13:17,367 INFO L225 Difference]: With dead ends: 542 [2019-10-15 03:13:17,367 INFO L226 Difference]: Without dead ends: 381 [2019-10-15 03:13:17,368 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-15 03:13:17,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 381 states. [2019-10-15 03:13:17,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 381 to 381. [2019-10-15 03:13:17,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 381 states. [2019-10-15 03:13:17,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 467 transitions. [2019-10-15 03:13:17,401 INFO L78 Accepts]: Start accepts. Automaton has 381 states and 467 transitions. Word has length 150 [2019-10-15 03:13:17,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:13:17,402 INFO L462 AbstractCegarLoop]: Abstraction has 381 states and 467 transitions. [2019-10-15 03:13:17,402 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-15 03:13:17,402 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 467 transitions. [2019-10-15 03:13:17,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2019-10-15 03:13:17,408 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:13:17,409 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:13:17,409 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:13:17,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:13:17,409 INFO L82 PathProgramCache]: Analyzing trace with hash 2130876534, now seen corresponding path program 1 times [2019-10-15 03:13:17,410 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:13:17,411 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472800461] [2019-10-15 03:13:17,411 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:13:17,411 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:13:17,411 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:13:17,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:13:18,333 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-15 03:13:18,334 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [472800461] [2019-10-15 03:13:18,334 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:13:18,334 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2019-10-15 03:13:18,335 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816620353] [2019-10-15 03:13:18,336 INFO L442 AbstractCegarLoop]: Interpolant automaton has 27 states [2019-10-15 03:13:18,336 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:13:18,336 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2019-10-15 03:13:18,338 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=633, Unknown=0, NotChecked=0, Total=702 [2019-10-15 03:13:18,338 INFO L87 Difference]: Start difference. First operand 381 states and 467 transitions. Second operand 27 states. [2019-10-15 03:13:28,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:13:28,634 INFO L93 Difference]: Finished difference Result 763 states and 903 transitions. [2019-10-15 03:13:28,635 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2019-10-15 03:13:28,635 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 155 [2019-10-15 03:13:28,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:13:28,642 INFO L225 Difference]: With dead ends: 763 [2019-10-15 03:13:28,642 INFO L226 Difference]: Without dead ends: 571 [2019-10-15 03:13:28,646 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 413 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=255, Invalid=2607, Unknown=0, NotChecked=0, Total=2862 [2019-10-15 03:13:28,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 571 states. [2019-10-15 03:13:28,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 571 to 564. [2019-10-15 03:13:28,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 564 states. [2019-10-15 03:13:28,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 564 states to 564 states and 671 transitions. [2019-10-15 03:13:28,702 INFO L78 Accepts]: Start accepts. Automaton has 564 states and 671 transitions. Word has length 155 [2019-10-15 03:13:28,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:13:28,703 INFO L462 AbstractCegarLoop]: Abstraction has 564 states and 671 transitions. [2019-10-15 03:13:28,703 INFO L463 AbstractCegarLoop]: Interpolant automaton has 27 states. [2019-10-15 03:13:28,703 INFO L276 IsEmpty]: Start isEmpty. Operand 564 states and 671 transitions. [2019-10-15 03:13:28,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2019-10-15 03:13:28,706 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:13:28,707 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:13:28,707 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:13:28,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:13:28,708 INFO L82 PathProgramCache]: Analyzing trace with hash -1706585510, now seen corresponding path program 1 times [2019-10-15 03:13:28,708 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:13:28,708 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1613976132] [2019-10-15 03:13:28,708 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:13:28,708 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:13:28,709 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:13:28,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:13:29,405 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-10-15 03:13:29,406 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1613976132] [2019-10-15 03:13:29,407 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:13:29,407 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2019-10-15 03:13:29,408 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064047895] [2019-10-15 03:13:29,408 INFO L442 AbstractCegarLoop]: Interpolant automaton has 21 states [2019-10-15 03:13:29,409 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:13:29,409 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2019-10-15 03:13:29,409 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=371, Unknown=0, NotChecked=0, Total=420 [2019-10-15 03:13:29,410 INFO L87 Difference]: Start difference. First operand 564 states and 671 transitions. Second operand 21 states. [2019-10-15 03:13:37,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:13:37,543 INFO L93 Difference]: Finished difference Result 1168 states and 1331 transitions. [2019-10-15 03:13:37,543 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2019-10-15 03:13:37,543 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 176 [2019-10-15 03:13:37,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:13:37,549 INFO L225 Difference]: With dead ends: 1168 [2019-10-15 03:13:37,549 INFO L226 Difference]: Without dead ends: 780 [2019-10-15 03:13:37,551 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 316 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=213, Invalid=1679, Unknown=0, NotChecked=0, Total=1892 [2019-10-15 03:13:37,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 780 states. [2019-10-15 03:13:37,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 780 to 763. [2019-10-15 03:13:37,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 763 states. [2019-10-15 03:13:37,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 763 states to 763 states and 890 transitions. [2019-10-15 03:13:37,593 INFO L78 Accepts]: Start accepts. Automaton has 763 states and 890 transitions. Word has length 176 [2019-10-15 03:13:37,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:13:37,594 INFO L462 AbstractCegarLoop]: Abstraction has 763 states and 890 transitions. [2019-10-15 03:13:37,594 INFO L463 AbstractCegarLoop]: Interpolant automaton has 21 states. [2019-10-15 03:13:37,594 INFO L276 IsEmpty]: Start isEmpty. Operand 763 states and 890 transitions. [2019-10-15 03:13:37,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2019-10-15 03:13:37,597 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:13:37,598 INFO L380 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] [2019-10-15 03:13:37,598 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:13:37,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:13:37,598 INFO L82 PathProgramCache]: Analyzing trace with hash -225793300, now seen corresponding path program 1 times [2019-10-15 03:13:37,599 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:13:37,599 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1737855333] [2019-10-15 03:13:37,599 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:13:37,599 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:13:37,599 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:13:37,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:13:38,624 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2019-10-15 03:13:38,625 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1737855333] [2019-10-15 03:13:38,625 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1101548381] [2019-10-15 03:13:38,625 INFO L94 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 [2019-10-15 03:13:39,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:13:39,344 INFO L256 TraceCheckSpWp]: Trace formula consists of 2610 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-15 03:13:39,361 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 03:13:39,507 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-15 03:13:39,508 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 03:13:39,835 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-15 03:13:39,836 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1048538033] [2019-10-15 03:13:39,877 INFO L162 IcfgInterpreter]: Started Sifa with 167 locations of interest [2019-10-15 03:13:39,877 INFO L169 IcfgInterpreter]: Building call graph [2019-10-15 03:13:39,884 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-15 03:13:39,893 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-15 03:13:39,893 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs