/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_spec27_product28.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-07 04:18:53,986 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-07 04:18:53,988 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-07 04:18:54,003 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-07 04:18:54,004 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-07 04:18:54,005 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-07 04:18:54,006 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-07 04:18:54,008 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-07 04:18:54,010 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-07 04:18:54,011 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-07 04:18:54,012 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-07 04:18:54,013 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-07 04:18:54,013 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-07 04:18:54,014 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-07 04:18:54,015 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-07 04:18:54,016 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-07 04:18:54,017 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-07 04:18:54,018 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-07 04:18:54,019 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-07 04:18:54,021 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-07 04:18:54,022 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-07 04:18:54,024 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-07 04:18:54,025 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-07 04:18:54,026 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-07 04:18:54,028 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-07 04:18:54,028 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-07 04:18:54,028 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-07 04:18:54,029 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-07 04:18:54,030 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-07 04:18:54,031 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-07 04:18:54,031 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-07 04:18:54,032 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-07 04:18:54,032 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-07 04:18:54,033 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-07 04:18:54,034 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-07 04:18:54,034 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-07 04:18:54,035 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-07 04:18:54,035 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-07 04:18:54,035 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-07 04:18:54,036 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-07 04:18:54,037 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-07 04:18:54,038 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 04:18:54,052 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-07 04:18:54,052 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-07 04:18:54,053 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-07 04:18:54,053 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-07 04:18:54,054 INFO L138 SettingsManager]: * Use SBE=true [2019-11-07 04:18:54,054 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-07 04:18:54,054 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-07 04:18:54,054 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-07 04:18:54,054 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-07 04:18:54,055 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-07 04:18:54,057 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-07 04:18:54,057 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-07 04:18:54,057 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-07 04:18:54,058 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-07 04:18:54,058 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-07 04:18:54,058 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-07 04:18:54,058 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-07 04:18:54,058 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-07 04:18:54,059 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-07 04:18:54,059 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-07 04:18:54,059 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-07 04:18:54,059 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 04:18:54,059 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-07 04:18:54,059 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-07 04:18:54,060 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-07 04:18:54,060 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-07 04:18:54,060 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-07 04:18:54,060 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-07 04:18:54,060 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 04:18:54,382 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-07 04:18:54,397 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-07 04:18:54,401 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-07 04:18:54,403 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-07 04:18:54,403 INFO L275 PluginConnector]: CDTParser initialized [2019-11-07 04:18:54,404 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec27_product28.cil.c [2019-11-07 04:18:54,476 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f513fc441/cb640aa04744455e99429e11f3b0bfa1/FLAG82a36a980 [2019-11-07 04:18:55,148 INFO L306 CDTParser]: Found 1 translation units. [2019-11-07 04:18:55,148 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec27_product28.cil.c [2019-11-07 04:18:55,179 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f513fc441/cb640aa04744455e99429e11f3b0bfa1/FLAG82a36a980 [2019-11-07 04:18:55,343 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f513fc441/cb640aa04744455e99429e11f3b0bfa1 [2019-11-07 04:18:55,355 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-07 04:18:55,362 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-07 04:18:55,374 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-07 04:18:55,374 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-07 04:18:55,386 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-07 04:18:55,387 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:18:55" (1/1) ... [2019-11-07 04:18:55,394 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40852bb4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:18:55, skipping insertion in model container [2019-11-07 04:18:55,394 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:18:55" (1/1) ... [2019-11-07 04:18:55,418 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-07 04:18:55,571 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-07 04:18:56,377 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 04:18:56,403 INFO L188 MainTranslator]: Completed pre-run [2019-11-07 04:18:56,535 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 04:18:56,650 INFO L192 MainTranslator]: Completed translation [2019-11-07 04:18:56,651 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:18:56 WrapperNode [2019-11-07 04:18:56,651 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-07 04:18:56,652 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-07 04:18:56,652 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-07 04:18:56,653 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-07 04:18:56,668 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:18:56" (1/1) ... [2019-11-07 04:18:56,669 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:18:56" (1/1) ... [2019-11-07 04:18:56,726 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:18:56" (1/1) ... [2019-11-07 04:18:56,727 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:18:56" (1/1) ... [2019-11-07 04:18:56,808 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:18:56" (1/1) ... [2019-11-07 04:18:56,829 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:18:56" (1/1) ... [2019-11-07 04:18:56,840 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:18:56" (1/1) ... [2019-11-07 04:18:56,857 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-07 04:18:56,858 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-07 04:18:56,858 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-07 04:18:56,858 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-07 04:18:56,861 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:18:56" (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 04:18:56,938 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-07 04:18:56,938 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-07 04:18:56,938 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-11-07 04:18:56,939 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__VerifyForward_spec__1 [2019-11-07 04:18:56,939 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-11-07 04:18:56,939 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-11-07 04:18:56,939 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-11-07 04:18:56,940 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-11-07 04:18:56,940 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-11-07 04:18:56,940 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-11-07 04:18:56,940 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-11-07 04:18:56,941 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-11-07 04:18:56,941 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-11-07 04:18:56,941 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-07 04:18:56,941 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-11-07 04:18:56,941 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-11-07 04:18:56,942 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-11-07 04:18:56,942 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-11-07 04:18:56,942 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-11-07 04:18:56,942 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-11-07 04:18:56,943 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-11-07 04:18:56,943 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-11-07 04:18:56,943 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-11-07 04:18:56,943 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-11-07 04:18:56,943 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Encrypt [2019-11-07 04:18:56,944 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Sign [2019-11-07 04:18:56,944 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-11-07 04:18:56,944 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-11-07 04:18:56,944 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-11-07 04:18:56,944 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-11-07 04:18:56,945 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-11-07 04:18:56,945 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-11-07 04:18:56,945 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-11-07 04:18:56,945 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-11-07 04:18:56,945 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-11-07 04:18:56,946 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-11-07 04:18:56,946 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-11-07 04:18:56,946 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-11-07 04:18:56,946 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-11-07 04:18:56,946 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-11-07 04:18:56,946 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-11-07 04:18:56,947 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-11-07 04:18:56,947 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-11-07 04:18:56,947 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-11-07 04:18:56,947 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-11-07 04:18:56,947 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-11-07 04:18:56,947 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-11-07 04:18:56,948 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-11-07 04:18:56,948 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-11-07 04:18:56,948 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-11-07 04:18:56,948 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-11-07 04:18:56,948 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-11-07 04:18:56,949 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-11-07 04:18:56,949 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-11-07 04:18:56,949 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-11-07 04:18:56,949 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-11-07 04:18:56,949 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-11-07 04:18:56,949 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-11-07 04:18:56,950 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-11-07 04:18:56,950 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-11-07 04:18:56,950 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Encrypt [2019-11-07 04:18:56,950 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-11-07 04:18:56,950 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-11-07 04:18:56,951 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-11-07 04:18:56,951 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Verify [2019-11-07 04:18:56,951 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-11-07 04:18:56,951 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-11-07 04:18:56,951 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-11-07 04:18:56,951 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-11-07 04:18:56,952 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-11-07 04:18:56,952 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-11-07 04:18:56,952 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-11-07 04:18:56,952 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-11-07 04:18:56,952 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-11-07 04:18:56,952 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-11-07 04:18:56,953 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-11-07 04:18:56,953 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-11-07 04:18:56,953 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-11-07 04:18:56,953 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-11-07 04:18:56,953 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-11-07 04:18:56,954 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-11-07 04:18:56,954 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-11-07 04:18:56,954 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-11-07 04:18:56,954 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-11-07 04:18:56,954 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-11-07 04:18:56,954 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-11-07 04:18:56,955 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-11-07 04:18:56,955 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-11-07 04:18:56,955 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-11-07 04:18:56,955 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-11-07 04:18:56,955 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-11-07 04:18:56,956 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-11-07 04:18:56,956 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-11-07 04:18:56,956 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-11-07 04:18:56,956 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-11-07 04:18:56,956 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-11-07 04:18:56,956 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-11-07 04:18:56,957 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-11-07 04:18:56,957 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-11-07 04:18:56,957 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-11-07 04:18:56,957 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-11-07 04:18:56,957 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-11-07 04:18:56,957 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-11-07 04:18:56,958 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-11-07 04:18:56,958 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-11-07 04:18:56,958 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-11-07 04:18:56,958 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-11-07 04:18:56,958 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-11-07 04:18:56,958 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-11-07 04:18:56,958 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-11-07 04:18:56,959 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-11-07 04:18:56,959 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-11-07 04:18:56,959 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-07 04:18:56,959 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-07 04:18:56,959 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-11-07 04:18:56,959 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-11-07 04:18:56,959 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-11-07 04:18:56,960 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-11-07 04:18:56,960 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-11-07 04:18:56,960 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__VerifyForward_spec__1 [2019-11-07 04:18:56,960 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-07 04:18:56,960 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-11-07 04:18:56,960 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-11-07 04:18:56,961 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-11-07 04:18:56,961 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-11-07 04:18:56,961 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-11-07 04:18:56,961 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-11-07 04:18:56,961 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-11-07 04:18:56,961 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-11-07 04:18:56,961 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-11-07 04:18:56,961 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-11-07 04:18:56,962 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-11-07 04:18:56,962 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-11-07 04:18:56,962 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-11-07 04:18:56,962 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-11-07 04:18:56,962 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-11-07 04:18:56,963 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-11-07 04:18:56,963 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-11-07 04:18:56,963 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-11-07 04:18:56,963 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-11-07 04:18:56,963 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-11-07 04:18:56,963 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-11-07 04:18:56,963 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-11-07 04:18:56,963 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-11-07 04:18:56,964 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-11-07 04:18:56,964 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-07 04:18:56,964 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-11-07 04:18:56,964 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-11-07 04:18:56,964 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-11-07 04:18:56,964 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-11-07 04:18:56,964 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-11-07 04:18:56,965 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-11-07 04:18:56,965 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-11-07 04:18:56,965 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-11-07 04:18:56,965 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-11-07 04:18:56,965 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-11-07 04:18:56,965 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-11-07 04:18:56,965 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-11-07 04:18:56,965 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-11-07 04:18:56,966 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-11-07 04:18:56,966 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-11-07 04:18:56,966 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-11-07 04:18:56,966 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-11-07 04:18:56,966 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-11-07 04:18:56,966 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-11-07 04:18:56,966 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-11-07 04:18:56,967 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-11-07 04:18:56,967 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-11-07 04:18:56,967 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-11-07 04:18:56,967 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-11-07 04:18:56,967 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-11-07 04:18:56,967 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Encrypt [2019-11-07 04:18:56,967 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Sign [2019-11-07 04:18:56,967 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-11-07 04:18:56,968 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-11-07 04:18:56,968 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-07 04:18:56,968 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-07 04:18:56,968 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-11-07 04:18:56,968 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-07 04:18:56,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-07 04:18:56,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-07 04:18:56,968 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-07 04:18:56,969 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-11-07 04:18:56,969 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-07 04:18:56,969 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-11-07 04:18:56,969 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-11-07 04:18:56,969 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-07 04:18:56,969 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-11-07 04:18:56,969 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-11-07 04:18:56,969 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-11-07 04:18:56,970 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-11-07 04:18:56,970 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-11-07 04:18:56,970 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-11-07 04:18:56,970 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-11-07 04:18:56,970 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-11-07 04:18:56,970 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-11-07 04:18:56,970 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-11-07 04:18:56,971 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-11-07 04:18:56,971 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-11-07 04:18:56,971 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-11-07 04:18:56,971 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-11-07 04:18:56,971 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-11-07 04:18:56,971 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-11-07 04:18:56,971 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-11-07 04:18:56,971 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-11-07 04:18:56,972 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-11-07 04:18:56,972 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-11-07 04:18:56,972 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-11-07 04:18:56,972 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-11-07 04:18:56,972 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-11-07 04:18:56,972 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-11-07 04:18:56,972 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-11-07 04:18:56,973 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-11-07 04:18:56,973 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Encrypt [2019-11-07 04:18:56,973 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-11-07 04:18:56,973 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Verify [2019-11-07 04:18:56,973 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-11-07 04:18:56,973 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-11-07 04:18:56,973 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-11-07 04:18:56,974 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-11-07 04:18:56,974 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-11-07 04:18:56,974 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-11-07 04:18:56,974 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-11-07 04:18:56,974 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-11-07 04:18:56,974 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-11-07 04:18:56,974 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-11-07 04:18:56,974 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-11-07 04:18:56,975 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-11-07 04:18:56,975 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-11-07 04:18:56,975 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-11-07 04:18:56,975 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-11-07 04:18:56,975 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-11-07 04:18:56,975 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-11-07 04:18:56,975 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-11-07 04:18:56,975 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-11-07 04:18:56,976 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-11-07 04:18:56,976 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-07 04:18:56,976 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-07 04:18:56,976 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-07 04:19:01,479 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-07 04:19:01,480 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-11-07 04:19:01,481 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:19:01 BoogieIcfgContainer [2019-11-07 04:19:01,482 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-07 04:19:01,483 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-07 04:19:01,483 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-07 04:19:01,486 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-07 04:19:01,487 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 04:18:55" (1/3) ... [2019-11-07 04:19:01,487 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b2c8cac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 04:19:01, skipping insertion in model container [2019-11-07 04:19:01,488 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:18:56" (2/3) ... [2019-11-07 04:19:01,488 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b2c8cac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 04:19:01, skipping insertion in model container [2019-11-07 04:19:01,488 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:19:01" (3/3) ... [2019-11-07 04:19:01,490 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec27_product28.cil.c [2019-11-07 04:19:01,502 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-07 04:19:01,511 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-07 04:19:01,523 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-07 04:19:01,553 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-07 04:19:01,553 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-07 04:19:01,553 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-07 04:19:01,553 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-07 04:19:01,553 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-07 04:19:01,554 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-07 04:19:01,554 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-07 04:19:01,554 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-07 04:19:01,583 INFO L276 IsEmpty]: Start isEmpty. Operand 375 states. [2019-11-07 04:19:01,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2019-11-07 04:19:01,603 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:19:01,604 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] [2019-11-07 04:19:01,607 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:19:01,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:19:01,613 INFO L82 PathProgramCache]: Analyzing trace with hash 909619424, now seen corresponding path program 1 times [2019-11-07 04:19:01,624 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:19:01,624 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [917384100] [2019-11-07 04:19:01,625 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:19:02,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:19:02,302 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 04:19:02,303 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [917384100] [2019-11-07 04:19:02,303 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:19:02,304 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-07 04:19:02,305 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [266003353] [2019-11-07 04:19:02,310 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-07 04:19:02,310 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:19:02,324 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-07 04:19:02,325 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-07 04:19:02,328 INFO L87 Difference]: Start difference. First operand 375 states. Second operand 2 states. [2019-11-07 04:19:02,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:19:02,393 INFO L93 Difference]: Finished difference Result 527 states and 629 transitions. [2019-11-07 04:19:02,394 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-07 04:19:02,395 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 165 [2019-11-07 04:19:02,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:19:02,414 INFO L225 Difference]: With dead ends: 527 [2019-11-07 04:19:02,414 INFO L226 Difference]: Without dead ends: 335 [2019-11-07 04:19:02,420 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 04:19:02,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 335 states. [2019-11-07 04:19:02,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 335 to 335. [2019-11-07 04:19:02,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 335 states. [2019-11-07 04:19:02,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 335 states to 335 states and 397 transitions. [2019-11-07 04:19:02,509 INFO L78 Accepts]: Start accepts. Automaton has 335 states and 397 transitions. Word has length 165 [2019-11-07 04:19:02,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:19:02,513 INFO L462 AbstractCegarLoop]: Abstraction has 335 states and 397 transitions. [2019-11-07 04:19:02,513 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-07 04:19:02,513 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states and 397 transitions. [2019-11-07 04:19:02,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2019-11-07 04:19:02,525 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:19:02,526 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] [2019-11-07 04:19:02,527 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:19:02,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:19:02,528 INFO L82 PathProgramCache]: Analyzing trace with hash -1925166444, now seen corresponding path program 1 times [2019-11-07 04:19:02,528 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:19:02,528 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1626153802] [2019-11-07 04:19:02,528 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:19:02,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:19:02,813 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 04:19:02,814 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1626153802] [2019-11-07 04:19:02,814 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:19:02,815 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 04:19:02,815 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013948601] [2019-11-07 04:19:02,821 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 04:19:02,821 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:19:02,821 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 04:19:02,822 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:19:02,822 INFO L87 Difference]: Start difference. First operand 335 states and 397 transitions. Second operand 3 states. [2019-11-07 04:19:02,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:19:02,907 INFO L93 Difference]: Finished difference Result 512 states and 596 transitions. [2019-11-07 04:19:02,907 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 04:19:02,907 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 166 [2019-11-07 04:19:02,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:19:02,919 INFO L225 Difference]: With dead ends: 512 [2019-11-07 04:19:02,919 INFO L226 Difference]: Without dead ends: 337 [2019-11-07 04:19:02,921 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 04:19:02,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337 states. [2019-11-07 04:19:02,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337 to 337. [2019-11-07 04:19:02,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 337 states. [2019-11-07 04:19:02,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 399 transitions. [2019-11-07 04:19:02,980 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 399 transitions. Word has length 166 [2019-11-07 04:19:02,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:19:02,981 INFO L462 AbstractCegarLoop]: Abstraction has 337 states and 399 transitions. [2019-11-07 04:19:02,981 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 04:19:02,981 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 399 transitions. [2019-11-07 04:19:02,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2019-11-07 04:19:02,987 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:19:02,987 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:19:02,987 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:19:02,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:19:02,988 INFO L82 PathProgramCache]: Analyzing trace with hash 1274658591, now seen corresponding path program 1 times [2019-11-07 04:19:02,988 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:19:02,988 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1327911967] [2019-11-07 04:19:02,988 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:19:03,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:19:03,297 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-11-07 04:19:03,298 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1327911967] [2019-11-07 04:19:03,298 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:19:03,298 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 04:19:03,298 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [839890762] [2019-11-07 04:19:03,299 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 04:19:03,299 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:19:03,300 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 04:19:03,300 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:19:03,300 INFO L87 Difference]: Start difference. First operand 337 states and 399 transitions. Second operand 3 states. [2019-11-07 04:19:03,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:19:03,345 INFO L93 Difference]: Finished difference Result 654 states and 802 transitions. [2019-11-07 04:19:03,345 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 04:19:03,345 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 171 [2019-11-07 04:19:03,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:19:03,351 INFO L225 Difference]: With dead ends: 654 [2019-11-07 04:19:03,352 INFO L226 Difference]: Without dead ends: 375 [2019-11-07 04:19:03,355 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 04:19:03,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 375 states. [2019-11-07 04:19:03,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 375 to 374. [2019-11-07 04:19:03,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 374 states. [2019-11-07 04:19:03,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 374 states to 374 states and 464 transitions. [2019-11-07 04:19:03,391 INFO L78 Accepts]: Start accepts. Automaton has 374 states and 464 transitions. Word has length 171 [2019-11-07 04:19:03,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:19:03,392 INFO L462 AbstractCegarLoop]: Abstraction has 374 states and 464 transitions. [2019-11-07 04:19:03,392 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 04:19:03,392 INFO L276 IsEmpty]: Start isEmpty. Operand 374 states and 464 transitions. [2019-11-07 04:19:03,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2019-11-07 04:19:03,396 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:19:03,396 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:19:03,396 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:19:03,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:19:03,397 INFO L82 PathProgramCache]: Analyzing trace with hash 142950709, now seen corresponding path program 1 times [2019-11-07 04:19:03,397 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:19:03,397 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1088663665] [2019-11-07 04:19:03,398 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:19:03,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:19:04,249 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2019-11-07 04:19:04,250 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1088663665] [2019-11-07 04:19:04,250 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:19:04,250 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2019-11-07 04:19:04,251 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522680131] [2019-11-07 04:19:04,255 INFO L442 AbstractCegarLoop]: Interpolant automaton has 26 states [2019-11-07 04:19:04,255 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:19:04,256 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2019-11-07 04:19:04,257 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=587, Unknown=0, NotChecked=0, Total=650 [2019-11-07 04:19:04,258 INFO L87 Difference]: Start difference. First operand 374 states and 464 transitions. Second operand 26 states. [2019-11-07 04:19:11,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:19:11,189 INFO L93 Difference]: Finished difference Result 784 states and 966 transitions. [2019-11-07 04:19:11,191 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2019-11-07 04:19:11,191 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 172 [2019-11-07 04:19:11,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:19:11,198 INFO L225 Difference]: With dead ends: 784 [2019-11-07 04:19:11,198 INFO L226 Difference]: Without dead ends: 611 [2019-11-07 04:19:11,200 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 311 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=167, Invalid=1813, Unknown=0, NotChecked=0, Total=1980 [2019-11-07 04:19:11,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 611 states. [2019-11-07 04:19:11,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 611 to 582. [2019-11-07 04:19:11,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 582 states. [2019-11-07 04:19:11,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 582 states to 582 states and 719 transitions. [2019-11-07 04:19:11,237 INFO L78 Accepts]: Start accepts. Automaton has 582 states and 719 transitions. Word has length 172 [2019-11-07 04:19:11,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:19:11,238 INFO L462 AbstractCegarLoop]: Abstraction has 582 states and 719 transitions. [2019-11-07 04:19:11,238 INFO L463 AbstractCegarLoop]: Interpolant automaton has 26 states. [2019-11-07 04:19:11,238 INFO L276 IsEmpty]: Start isEmpty. Operand 582 states and 719 transitions. [2019-11-07 04:19:11,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2019-11-07 04:19:11,242 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:19:11,243 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:19:11,243 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:19:11,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:19:11,243 INFO L82 PathProgramCache]: Analyzing trace with hash 29967552, now seen corresponding path program 1 times [2019-11-07 04:19:11,244 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:19:11,244 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2022496668] [2019-11-07 04:19:11,244 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:19:11,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:19:11,480 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2019-11-07 04:19:11,481 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2022496668] [2019-11-07 04:19:11,482 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:19:11,482 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-11-07 04:19:11,483 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2122128943] [2019-11-07 04:19:11,484 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-07 04:19:11,484 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:19:11,485 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-07 04:19:11,485 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-11-07 04:19:11,486 INFO L87 Difference]: Start difference. First operand 582 states and 719 transitions. Second operand 10 states. [2019-11-07 04:19:11,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:19:11,572 INFO L93 Difference]: Finished difference Result 937 states and 1143 transitions. [2019-11-07 04:19:11,572 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-11-07 04:19:11,573 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 176 [2019-11-07 04:19:11,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:19:11,582 INFO L225 Difference]: With dead ends: 937 [2019-11-07 04:19:11,583 INFO L226 Difference]: Without dead ends: 602 [2019-11-07 04:19:11,584 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 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 04:19:11,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 602 states. [2019-11-07 04:19:11,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 602 to 586. [2019-11-07 04:19:11,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 586 states. [2019-11-07 04:19:11,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 586 states to 586 states and 722 transitions. [2019-11-07 04:19:11,636 INFO L78 Accepts]: Start accepts. Automaton has 586 states and 722 transitions. Word has length 176 [2019-11-07 04:19:11,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:19:11,638 INFO L462 AbstractCegarLoop]: Abstraction has 586 states and 722 transitions. [2019-11-07 04:19:11,638 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-11-07 04:19:11,638 INFO L276 IsEmpty]: Start isEmpty. Operand 586 states and 722 transitions. [2019-11-07 04:19:11,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2019-11-07 04:19:11,642 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:19:11,642 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:19:11,643 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:19:11,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:19:11,643 INFO L82 PathProgramCache]: Analyzing trace with hash 757807841, now seen corresponding path program 1 times [2019-11-07 04:19:11,643 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:19:11,644 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2088092894] [2019-11-07 04:19:11,644 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:19:11,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:19:12,402 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2019-11-07 04:19:12,402 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2088092894] [2019-11-07 04:19:12,403 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:19:12,403 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2019-11-07 04:19:12,403 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419254296] [2019-11-07 04:19:12,404 INFO L442 AbstractCegarLoop]: Interpolant automaton has 29 states [2019-11-07 04:19:12,404 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:19:12,404 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2019-11-07 04:19:12,405 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=737, Unknown=0, NotChecked=0, Total=812 [2019-11-07 04:19:12,405 INFO L87 Difference]: Start difference. First operand 586 states and 722 transitions. Second operand 29 states. [2019-11-07 04:19:23,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:19:23,222 INFO L93 Difference]: Finished difference Result 1355 states and 1634 transitions. [2019-11-07 04:19:23,223 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2019-11-07 04:19:23,223 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 178 [2019-11-07 04:19:23,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:19:23,230 INFO L225 Difference]: With dead ends: 1355 [2019-11-07 04:19:23,231 INFO L226 Difference]: Without dead ends: 981 [2019-11-07 04:19:23,233 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 479 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=275, Invalid=3031, Unknown=0, NotChecked=0, Total=3306 [2019-11-07 04:19:23,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 981 states. [2019-11-07 04:19:23,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 981 to 964. [2019-11-07 04:19:23,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 964 states. [2019-11-07 04:19:23,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 964 states to 964 states and 1169 transitions. [2019-11-07 04:19:23,290 INFO L78 Accepts]: Start accepts. Automaton has 964 states and 1169 transitions. Word has length 178 [2019-11-07 04:19:23,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:19:23,291 INFO L462 AbstractCegarLoop]: Abstraction has 964 states and 1169 transitions. [2019-11-07 04:19:23,291 INFO L463 AbstractCegarLoop]: Interpolant automaton has 29 states. [2019-11-07 04:19:23,291 INFO L276 IsEmpty]: Start isEmpty. Operand 964 states and 1169 transitions. [2019-11-07 04:19:23,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2019-11-07 04:19:23,296 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:19:23,296 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:19:23,296 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:19:23,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:19:23,297 INFO L82 PathProgramCache]: Analyzing trace with hash -1731604670, now seen corresponding path program 1 times [2019-11-07 04:19:23,297 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:19:23,297 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1398235925] [2019-11-07 04:19:23,298 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:19:23,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:19:23,805 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-11-07 04:19:23,806 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1398235925] [2019-11-07 04:19:23,806 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:19:23,806 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2019-11-07 04:19:23,807 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456861233] [2019-11-07 04:19:23,807 INFO L442 AbstractCegarLoop]: Interpolant automaton has 25 states [2019-11-07 04:19:23,807 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:19:23,808 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2019-11-07 04:19:23,808 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=539, Unknown=0, NotChecked=0, Total=600 [2019-11-07 04:19:23,808 INFO L87 Difference]: Start difference. First operand 964 states and 1169 transitions. Second operand 25 states. [2019-11-07 04:19:33,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:19:33,387 INFO L93 Difference]: Finished difference Result 2159 states and 2560 transitions. [2019-11-07 04:19:33,387 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2019-11-07 04:19:33,387 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 202 [2019-11-07 04:19:33,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:19:33,398 INFO L225 Difference]: With dead ends: 2159 [2019-11-07 04:19:33,398 INFO L226 Difference]: Without dead ends: 1457 [2019-11-07 04:19:33,402 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 460 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=253, Invalid=2399, Unknown=0, NotChecked=0, Total=2652 [2019-11-07 04:19:33,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1457 states. [2019-11-07 04:19:33,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1457 to 1379. [2019-11-07 04:19:33,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1379 states. [2019-11-07 04:19:33,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1379 states to 1379 states and 1659 transitions. [2019-11-07 04:19:33,485 INFO L78 Accepts]: Start accepts. Automaton has 1379 states and 1659 transitions. Word has length 202 [2019-11-07 04:19:33,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:19:33,486 INFO L462 AbstractCegarLoop]: Abstraction has 1379 states and 1659 transitions. [2019-11-07 04:19:33,486 INFO L463 AbstractCegarLoop]: Interpolant automaton has 25 states. [2019-11-07 04:19:33,486 INFO L276 IsEmpty]: Start isEmpty. Operand 1379 states and 1659 transitions. [2019-11-07 04:19:33,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2019-11-07 04:19:33,490 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:19:33,490 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:19:33,490 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:19:33,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:19:33,491 INFO L82 PathProgramCache]: Analyzing trace with hash -129881784, now seen corresponding path program 1 times [2019-11-07 04:19:33,491 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:19:33,491 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1072165690] [2019-11-07 04:19:33,492 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY