/usr/bin/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_spec0_product21.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-07 04:13:53,993 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-07 04:13:53,996 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-07 04:13:54,015 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-07 04:13:54,015 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-07 04:13:54,017 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-07 04:13:54,019 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-07 04:13:54,030 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-07 04:13:54,036 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-07 04:13:54,038 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-07 04:13:54,039 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-07 04:13:54,040 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-07 04:13:54,040 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-07 04:13:54,043 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-07 04:13:54,045 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-07 04:13:54,046 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-07 04:13:54,048 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-07 04:13:54,050 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-07 04:13:54,052 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-07 04:13:54,056 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-07 04:13:54,061 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-07 04:13:54,064 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-07 04:13:54,066 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-07 04:13:54,067 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-07 04:13:54,069 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-07 04:13:54,070 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-07 04:13:54,070 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-07 04:13:54,072 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-07 04:13:54,072 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-07 04:13:54,074 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-07 04:13:54,074 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-07 04:13:54,075 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-07 04:13:54,075 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-07 04:13:54,076 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-07 04:13:54,077 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-07 04:13:54,077 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-07 04:13:54,078 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-07 04:13:54,078 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-07 04:13:54,079 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-07 04:13:54,079 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-07 04:13:54,080 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-07 04:13:54,081 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 [2019-11-07 04:13:54,107 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-07 04:13:54,109 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-07 04:13:54,110 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-07 04:13:54,110 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-07 04:13:54,111 INFO L138 SettingsManager]: * Use SBE=true [2019-11-07 04:13:54,111 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-07 04:13:54,111 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-07 04:13:54,111 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-07 04:13:54,112 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-07 04:13:54,112 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-07 04:13:54,113 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-07 04:13:54,113 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-07 04:13:54,113 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-07 04:13:54,114 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-07 04:13:54,114 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-07 04:13:54,114 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-07 04:13:54,114 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-07 04:13:54,114 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-07 04:13:54,115 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-07 04:13:54,115 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-07 04:13:54,115 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-07 04:13:54,115 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 04:13:54,115 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-07 04:13:54,116 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-07 04:13:54,116 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-07 04:13:54,116 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-07 04:13:54,116 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-07 04:13:54,116 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-07 04:13:54,117 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 [2019-11-07 04:13:54,388 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-07 04:13:54,407 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-07 04:13:54,416 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-07 04:13:54,420 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-07 04:13:54,421 INFO L275 PluginConnector]: CDTParser initialized [2019-11-07 04:13:54,421 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec0_product21.cil.c [2019-11-07 04:13:54,486 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/54de4002c/81d955fa99a74433adba442085a96e73/FLAGa233bec10 [2019-11-07 04:13:55,129 INFO L306 CDTParser]: Found 1 translation units. [2019-11-07 04:13:55,130 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec0_product21.cil.c [2019-11-07 04:13:55,155 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/54de4002c/81d955fa99a74433adba442085a96e73/FLAGa233bec10 [2019-11-07 04:13:55,303 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/54de4002c/81d955fa99a74433adba442085a96e73 [2019-11-07 04:13:55,315 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-07 04:13:55,317 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-07 04:13:55,330 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-07 04:13:55,330 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-07 04:13:55,334 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-07 04:13:55,335 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:13:55" (1/1) ... [2019-11-07 04:13:55,338 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@245ee514 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:13:55, skipping insertion in model container [2019-11-07 04:13:55,350 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:13:55" (1/1) ... [2019-11-07 04:13:55,359 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-07 04:13:55,513 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-07 04:13:56,401 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 04:13:56,418 INFO L188 MainTranslator]: Completed pre-run [2019-11-07 04:13:56,514 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 04:13:56,599 INFO L192 MainTranslator]: Completed translation [2019-11-07 04:13:56,599 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:13:56 WrapperNode [2019-11-07 04:13:56,599 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-07 04:13:56,600 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-07 04:13:56,600 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-07 04:13:56,600 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-07 04:13:56,615 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:13:56" (1/1) ... [2019-11-07 04:13:56,615 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:13:56" (1/1) ... [2019-11-07 04:13:56,648 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:13:56" (1/1) ... [2019-11-07 04:13:56,649 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:13:56" (1/1) ... [2019-11-07 04:13:56,708 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:13:56" (1/1) ... [2019-11-07 04:13:56,732 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:13:56" (1/1) ... [2019-11-07 04:13:56,756 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:13:56" (1/1) ... [2019-11-07 04:13:56,783 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-07 04:13:56,789 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-07 04:13:56,790 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-07 04:13:56,790 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-07 04:13:56,791 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:13:56" (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 [2019-11-07 04:13:56,841 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-07 04:13:56,842 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-07 04:13:56,842 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-11-07 04:13:56,842 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-11-07 04:13:56,842 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-11-07 04:13:56,842 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-11-07 04:13:56,843 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-11-07 04:13:56,843 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-11-07 04:13:56,843 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-11-07 04:13:56,843 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-11-07 04:13:56,843 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-11-07 04:13:56,844 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-11-07 04:13:56,844 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-11-07 04:13:56,844 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-11-07 04:13:56,844 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-11-07 04:13:56,844 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-11-07 04:13:56,845 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-11-07 04:13:56,845 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-11-07 04:13:56,845 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-11-07 04:13:56,845 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-11-07 04:13:56,846 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-11-07 04:13:56,846 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-11-07 04:13:56,846 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-11-07 04:13:56,846 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-11-07 04:13:56,846 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-11-07 04:13:56,847 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-11-07 04:13:56,847 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-11-07 04:13:56,847 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-11-07 04:13:56,847 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-11-07 04:13:56,847 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-11-07 04:13:56,848 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-11-07 04:13:56,848 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-11-07 04:13:56,848 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-11-07 04:13:56,848 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-11-07 04:13:56,848 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-11-07 04:13:56,849 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-11-07 04:13:56,849 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-11-07 04:13:56,849 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-11-07 04:13:56,849 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-11-07 04:13:56,849 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-11-07 04:13:56,849 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-11-07 04:13:56,849 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-11-07 04:13:56,850 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-11-07 04:13:56,850 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-11-07 04:13:56,850 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-11-07 04:13:56,850 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-11-07 04:13:56,850 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-11-07 04:13:56,850 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-11-07 04:13:56,850 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-11-07 04:13:56,850 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-11-07 04:13:56,850 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-11-07 04:13:56,851 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-11-07 04:13:56,851 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-11-07 04:13:56,851 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-11-07 04:13:56,851 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-11-07 04:13:56,851 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-11-07 04:13:56,851 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-11-07 04:13:56,851 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-11-07 04:13:56,851 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-11-07 04:13:56,852 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-11-07 04:13:56,852 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-11-07 04:13:56,852 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-11-07 04:13:56,852 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-11-07 04:13:56,852 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-11-07 04:13:56,852 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-11-07 04:13:56,853 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-11-07 04:13:56,853 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__DecryptForward_spec__1 [2019-11-07 04:13:56,853 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-11-07 04:13:56,853 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-11-07 04:13:56,853 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-11-07 04:13:56,853 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-11-07 04:13:56,853 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-11-07 04:13:56,853 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-11-07 04:13:56,854 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-11-07 04:13:56,854 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-11-07 04:13:56,854 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-11-07 04:13:56,854 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-07 04:13:56,854 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-11-07 04:13:56,855 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-11-07 04:13:56,855 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-11-07 04:13:56,855 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-11-07 04:13:56,855 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-11-07 04:13:56,855 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-11-07 04:13:56,856 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-11-07 04:13:56,856 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-11-07 04:13:56,856 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-11-07 04:13:56,856 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-11-07 04:13:56,856 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-11-07 04:13:56,856 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-11-07 04:13:56,857 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-11-07 04:13:56,857 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Encrypt [2019-11-07 04:13:56,857 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-11-07 04:13:56,857 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-11-07 04:13:56,857 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__AddressBook [2019-11-07 04:13:56,857 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Forward [2019-11-07 04:13:56,857 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-11-07 04:13:56,857 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-11-07 04:13:56,857 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-11-07 04:13:56,858 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-11-07 04:13:56,858 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-11-07 04:13:56,858 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-11-07 04:13:56,858 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-11-07 04:13:56,858 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-11-07 04:13:56,858 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-11-07 04:13:56,858 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-11-07 04:13:56,858 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-11-07 04:13:56,858 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-11-07 04:13:56,858 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-11-07 04:13:56,859 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-11-07 04:13:56,859 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-11-07 04:13:56,859 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-11-07 04:13:56,859 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-11-07 04:13:56,859 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-07 04:13:56,859 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-07 04:13:56,859 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-11-07 04:13:56,859 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-11-07 04:13:56,859 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-11-07 04:13:56,860 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-11-07 04:13:56,860 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-11-07 04:13:56,860 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-11-07 04:13:56,860 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-11-07 04:13:56,860 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-11-07 04:13:56,860 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-11-07 04:13:56,860 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-11-07 04:13:56,861 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-11-07 04:13:56,861 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-11-07 04:13:56,861 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-11-07 04:13:56,861 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-11-07 04:13:56,861 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-11-07 04:13:56,861 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-11-07 04:13:56,862 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-11-07 04:13:56,862 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-11-07 04:13:56,862 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-11-07 04:13:56,862 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-11-07 04:13:56,862 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-11-07 04:13:56,862 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-11-07 04:13:56,862 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-11-07 04:13:56,863 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-11-07 04:13:56,863 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-11-07 04:13:56,863 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-11-07 04:13:56,863 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-11-07 04:13:56,863 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-11-07 04:13:56,863 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-11-07 04:13:56,863 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-11-07 04:13:56,863 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-11-07 04:13:56,864 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-07 04:13:56,864 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-11-07 04:13:56,864 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-11-07 04:13:56,864 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-11-07 04:13:56,864 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-11-07 04:13:56,864 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-11-07 04:13:56,864 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-11-07 04:13:56,865 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-11-07 04:13:56,865 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-11-07 04:13:56,865 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-11-07 04:13:56,865 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-11-07 04:13:56,865 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-11-07 04:13:56,865 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-11-07 04:13:56,865 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-11-07 04:13:56,866 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-11-07 04:13:56,866 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-11-07 04:13:56,866 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-11-07 04:13:56,866 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-11-07 04:13:56,866 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-11-07 04:13:56,866 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-11-07 04:13:56,867 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-11-07 04:13:56,867 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-11-07 04:13:56,867 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-11-07 04:13:56,867 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-07 04:13:56,867 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-07 04:13:56,867 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-11-07 04:13:56,867 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-07 04:13:56,867 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-07 04:13:56,868 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-07 04:13:56,868 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-07 04:13:56,868 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-11-07 04:13:56,868 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-07 04:13:56,868 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-11-07 04:13:56,868 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-11-07 04:13:56,868 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-07 04:13:56,869 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-11-07 04:13:56,869 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-11-07 04:13:56,869 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-11-07 04:13:56,869 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-11-07 04:13:56,869 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-11-07 04:13:56,869 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-11-07 04:13:56,870 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-11-07 04:13:56,870 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-11-07 04:13:56,870 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-11-07 04:13:56,870 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-11-07 04:13:56,870 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-11-07 04:13:56,870 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-11-07 04:13:56,870 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-11-07 04:13:56,870 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-11-07 04:13:56,871 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-11-07 04:13:56,871 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-11-07 04:13:56,871 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-11-07 04:13:56,871 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-11-07 04:13:56,871 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-11-07 04:13:56,871 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-11-07 04:13:56,871 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-11-07 04:13:56,872 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__DecryptForward_spec__1 [2019-11-07 04:13:56,872 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-11-07 04:13:56,872 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-11-07 04:13:56,872 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-11-07 04:13:56,872 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-11-07 04:13:56,872 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-11-07 04:13:56,872 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-11-07 04:13:56,873 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-11-07 04:13:56,873 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-11-07 04:13:56,873 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-11-07 04:13:56,873 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-11-07 04:13:56,873 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-11-07 04:13:56,873 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-07 04:13:56,873 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-11-07 04:13:56,873 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-11-07 04:13:56,874 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-11-07 04:13:56,874 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-11-07 04:13:56,874 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-11-07 04:13:56,874 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-11-07 04:13:56,874 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-11-07 04:13:56,874 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-11-07 04:13:56,875 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-11-07 04:13:56,875 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-11-07 04:13:56,875 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-11-07 04:13:56,875 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-11-07 04:13:56,875 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-11-07 04:13:56,875 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-11-07 04:13:56,875 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-11-07 04:13:56,876 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-11-07 04:13:56,876 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Encrypt [2019-11-07 04:13:56,876 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__AddressBook [2019-11-07 04:13:56,876 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Forward [2019-11-07 04:13:56,876 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-11-07 04:13:56,876 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-11-07 04:13:56,876 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-11-07 04:13:56,877 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-07 04:13:56,877 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-07 04:13:56,877 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-07 04:14:01,223 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-07 04:14:01,223 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-11-07 04:14:01,225 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:14:01 BoogieIcfgContainer [2019-11-07 04:14:01,225 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-07 04:14:01,226 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-07 04:14:01,226 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-07 04:14:01,229 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-07 04:14:01,230 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 04:13:55" (1/3) ... [2019-11-07 04:14:01,230 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b24df94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 04:14:01, skipping insertion in model container [2019-11-07 04:14:01,231 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:13:56" (2/3) ... [2019-11-07 04:14:01,231 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b24df94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 04:14:01, skipping insertion in model container [2019-11-07 04:14:01,231 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:14:01" (3/3) ... [2019-11-07 04:14:01,233 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec0_product21.cil.c [2019-11-07 04:14:01,243 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-07 04:14:01,253 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-07 04:14:01,265 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-07 04:14:01,294 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-07 04:14:01,294 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-07 04:14:01,294 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-07 04:14:01,294 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-07 04:14:01,295 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-07 04:14:01,295 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-07 04:14:01,295 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-07 04:14:01,295 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-07 04:14:01,323 INFO L276 IsEmpty]: Start isEmpty. Operand 390 states. [2019-11-07 04:14:01,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2019-11-07 04:14:01,342 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:14:01,344 INFO L410 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, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:14:01,346 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:14:01,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:14:01,351 INFO L82 PathProgramCache]: Analyzing trace with hash 850924982, now seen corresponding path program 1 times [2019-11-07 04:14:01,360 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:14:01,361 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1615285278] [2019-11-07 04:14:01,361 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:14:01,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:14:02,068 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-11-07 04:14:02,069 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1615285278] [2019-11-07 04:14:02,069 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:14:02,070 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-07 04:14:02,071 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594481619] [2019-11-07 04:14:02,079 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-07 04:14:02,080 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:14:02,093 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-07 04:14:02,094 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-07 04:14:02,096 INFO L87 Difference]: Start difference. First operand 390 states. Second operand 2 states. [2019-11-07 04:14:02,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:14:02,159 INFO L93 Difference]: Finished difference Result 562 states and 670 transitions. [2019-11-07 04:14:02,159 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-07 04:14:02,161 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 156 [2019-11-07 04:14:02,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:14:02,185 INFO L225 Difference]: With dead ends: 562 [2019-11-07 04:14:02,186 INFO L226 Difference]: Without dead ends: 363 [2019-11-07 04:14:02,194 INFO L630 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 [2019-11-07 04:14:02,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 363 states. [2019-11-07 04:14:02,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 363 to 363. [2019-11-07 04:14:02,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 363 states. [2019-11-07 04:14:02,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 363 states to 363 states and 428 transitions. [2019-11-07 04:14:02,311 INFO L78 Accepts]: Start accepts. Automaton has 363 states and 428 transitions. Word has length 156 [2019-11-07 04:14:02,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:14:02,314 INFO L462 AbstractCegarLoop]: Abstraction has 363 states and 428 transitions. [2019-11-07 04:14:02,314 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-07 04:14:02,314 INFO L276 IsEmpty]: Start isEmpty. Operand 363 states and 428 transitions. [2019-11-07 04:14:02,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2019-11-07 04:14:02,320 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:14:02,321 INFO L410 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:14:02,321 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:14:02,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:14:02,321 INFO L82 PathProgramCache]: Analyzing trace with hash 1759422716, now seen corresponding path program 1 times [2019-11-07 04:14:02,322 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:14:02,322 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [88664966] [2019-11-07 04:14:02,322 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:14:02,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:14:02,572 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-11-07 04:14:02,573 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [88664966] [2019-11-07 04:14:02,573 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:14:02,573 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 04:14:02,574 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363583163] [2019-11-07 04:14:02,578 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 04:14:02,578 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:14:02,578 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 04:14:02,579 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:14:02,579 INFO L87 Difference]: Start difference. First operand 363 states and 428 transitions. Second operand 3 states. [2019-11-07 04:14:02,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:14:02,663 INFO L93 Difference]: Finished difference Result 547 states and 636 transitions. [2019-11-07 04:14:02,663 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 04:14:02,663 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 157 [2019-11-07 04:14:02,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:14:02,674 INFO L225 Difference]: With dead ends: 547 [2019-11-07 04:14:02,675 INFO L226 Difference]: Without dead ends: 365 [2019-11-07 04:14:02,680 INFO L630 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 [2019-11-07 04:14:02,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 365 states. [2019-11-07 04:14:02,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 365 to 365. [2019-11-07 04:14:02,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 365 states. [2019-11-07 04:14:02,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365 states to 365 states and 430 transitions. [2019-11-07 04:14:02,729 INFO L78 Accepts]: Start accepts. Automaton has 365 states and 430 transitions. Word has length 157 [2019-11-07 04:14:02,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:14:02,731 INFO L462 AbstractCegarLoop]: Abstraction has 365 states and 430 transitions. [2019-11-07 04:14:02,731 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 04:14:02,731 INFO L276 IsEmpty]: Start isEmpty. Operand 365 states and 430 transitions. [2019-11-07 04:14:02,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2019-11-07 04:14:02,737 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:14:02,738 INFO L410 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] [2019-11-07 04:14:02,738 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:14:02,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:14:02,739 INFO L82 PathProgramCache]: Analyzing trace with hash 467859541, now seen corresponding path program 1 times [2019-11-07 04:14:02,740 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:14:02,740 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1586628131] [2019-11-07 04:14:02,740 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:14:02,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:14:03,021 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-11-07 04:14:03,022 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1586628131] [2019-11-07 04:14:03,022 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:14:03,022 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 04:14:03,022 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624019699] [2019-11-07 04:14:03,023 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 04:14:03,023 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:14:03,024 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 04:14:03,024 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:14:03,024 INFO L87 Difference]: Start difference. First operand 365 states and 430 transitions. Second operand 3 states. [2019-11-07 04:14:03,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:14:03,065 INFO L93 Difference]: Finished difference Result 714 states and 870 transitions. [2019-11-07 04:14:03,068 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 04:14:03,068 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 162 [2019-11-07 04:14:03,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:14:03,073 INFO L225 Difference]: With dead ends: 714 [2019-11-07 04:14:03,073 INFO L226 Difference]: Without dead ends: 407 [2019-11-07 04:14:03,075 INFO L630 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 [2019-11-07 04:14:03,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 407 states. [2019-11-07 04:14:03,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 407 to 406. [2019-11-07 04:14:03,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 406 states. [2019-11-07 04:14:03,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 406 states to 406 states and 501 transitions. [2019-11-07 04:14:03,109 INFO L78 Accepts]: Start accepts. Automaton has 406 states and 501 transitions. Word has length 162 [2019-11-07 04:14:03,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:14:03,110 INFO L462 AbstractCegarLoop]: Abstraction has 406 states and 501 transitions. [2019-11-07 04:14:03,110 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 04:14:03,110 INFO L276 IsEmpty]: Start isEmpty. Operand 406 states and 501 transitions. [2019-11-07 04:14:03,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2019-11-07 04:14:03,116 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:14:03,117 INFO L410 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] [2019-11-07 04:14:03,117 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:14:03,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:14:03,117 INFO L82 PathProgramCache]: Analyzing trace with hash -1903128941, now seen corresponding path program 1 times [2019-11-07 04:14:03,118 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:14:03,118 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1661203676] [2019-11-07 04:14:03,118 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:14:03,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:14:04,206 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-11-07 04:14:04,207 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1661203676] [2019-11-07 04:14:04,207 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:14:04,208 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2019-11-07 04:14:04,208 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574129635] [2019-11-07 04:14:04,213 INFO L442 AbstractCegarLoop]: Interpolant automaton has 28 states [2019-11-07 04:14:04,215 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:14:04,216 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2019-11-07 04:14:04,218 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=685, Unknown=0, NotChecked=0, Total=756 [2019-11-07 04:14:04,218 INFO L87 Difference]: Start difference. First operand 406 states and 501 transitions. Second operand 28 states. [2019-11-07 04:14:14,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:14:14,178 INFO L93 Difference]: Finished difference Result 830 states and 1024 transitions. [2019-11-07 04:14:14,178 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2019-11-07 04:14:14,179 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 163 [2019-11-07 04:14:14,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:14:14,189 INFO L225 Difference]: With dead ends: 830 [2019-11-07 04:14:14,189 INFO L226 Difference]: Without dead ends: 658 [2019-11-07 04:14:14,192 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 285 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=170, Invalid=1900, Unknown=0, NotChecked=0, Total=2070 [2019-11-07 04:14:14,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 658 states. [2019-11-07 04:14:14,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 658 to 646. [2019-11-07 04:14:14,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 646 states. [2019-11-07 04:14:14,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 646 states to 646 states and 800 transitions. [2019-11-07 04:14:14,265 INFO L78 Accepts]: Start accepts. Automaton has 646 states and 800 transitions. Word has length 163 [2019-11-07 04:14:14,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:14:14,267 INFO L462 AbstractCegarLoop]: Abstraction has 646 states and 800 transitions. [2019-11-07 04:14:14,267 INFO L463 AbstractCegarLoop]: Interpolant automaton has 28 states. [2019-11-07 04:14:14,267 INFO L276 IsEmpty]: Start isEmpty. Operand 646 states and 800 transitions. [2019-11-07 04:14:14,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2019-11-07 04:14:14,272 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:14:14,273 INFO L410 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] [2019-11-07 04:14:14,273 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:14:14,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:14:14,273 INFO L82 PathProgramCache]: Analyzing trace with hash -76166860, now seen corresponding path program 1 times [2019-11-07 04:14:14,274 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:14:14,274 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [215294878] [2019-11-07 04:14:14,275 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:14:14,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:14:14,574 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-11-07 04:14:14,576 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [215294878] [2019-11-07 04:14:14,576 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:14:14,577 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-11-07 04:14:14,577 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888737726] [2019-11-07 04:14:14,579 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-07 04:14:14,580 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:14:14,580 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-07 04:14:14,583 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-11-07 04:14:14,583 INFO L87 Difference]: Start difference. First operand 646 states and 800 transitions. Second operand 10 states. [2019-11-07 04:14:14,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:14:14,742 INFO L93 Difference]: Finished difference Result 655 states and 811 transitions. [2019-11-07 04:14:14,742 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-11-07 04:14:14,743 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 167 [2019-11-07 04:14:14,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:14:14,756 INFO L225 Difference]: With dead ends: 655 [2019-11-07 04:14:14,756 INFO L226 Difference]: Without dead ends: 652 [2019-11-07 04:14:14,759 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-11-07 04:14:14,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 652 states. [2019-11-07 04:14:14,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 652 to 652. [2019-11-07 04:14:14,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 652 states. [2019-11-07 04:14:14,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 652 states to 652 states and 806 transitions. [2019-11-07 04:14:14,812 INFO L78 Accepts]: Start accepts. Automaton has 652 states and 806 transitions. Word has length 167 [2019-11-07 04:14:14,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:14:14,816 INFO L462 AbstractCegarLoop]: Abstraction has 652 states and 806 transitions. [2019-11-07 04:14:14,816 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-11-07 04:14:14,816 INFO L276 IsEmpty]: Start isEmpty. Operand 652 states and 806 transitions. [2019-11-07 04:14:14,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2019-11-07 04:14:14,822 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:14:14,823 INFO L410 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] [2019-11-07 04:14:14,823 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:14:14,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:14:14,824 INFO L82 PathProgramCache]: Analyzing trace with hash -468017508, now seen corresponding path program 1 times [2019-11-07 04:14:14,824 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:14:14,824 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [535941718] [2019-11-07 04:14:14,825 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:14:14,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:14:15,750 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-11-07 04:14:15,753 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [535941718] [2019-11-07 04:14:15,753 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [571332066] [2019-11-07 04:14:15,753 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 [2019-11-07 04:14:16,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:14:16,439 INFO L256 TraceCheckSpWp]: Trace formula consists of 2758 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-07 04:14:16,456 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-07 04:14:16,583 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-11-07 04:14:16,583 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-07 04:14:16,829 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-11-07 04:14:16,830 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [694432897] [2019-11-07 04:14:16,867 INFO L159 IcfgInterpreter]: Started Sifa with 154 locations of interest [2019-11-07 04:14:16,867 INFO L166 IcfgInterpreter]: Building call graph [2019-11-07 04:14:16,875 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-11-07 04:14:16,882 INFO L176 IcfgInterpreter]: Starting interpretation [2019-11-07 04:14:16,883 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs