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_spec9_product16.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-36ac518-m [2019-10-07 15:10:23,774 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-07 15:10:23,777 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-07 15:10:23,794 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-07 15:10:23,794 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-07 15:10:23,796 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-07 15:10:23,798 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-07 15:10:23,807 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-07 15:10:23,812 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-07 15:10:23,815 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-07 15:10:23,816 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-07 15:10:23,817 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-07 15:10:23,817 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-07 15:10:23,819 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-07 15:10:23,822 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-07 15:10:23,823 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-07 15:10:23,824 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-07 15:10:23,826 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-07 15:10:23,828 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-07 15:10:23,832 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-07 15:10:23,836 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-07 15:10:23,837 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-07 15:10:23,840 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-07 15:10:23,841 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-07 15:10:23,843 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-07 15:10:23,843 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-07 15:10:23,843 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-07 15:10:23,845 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-07 15:10:23,846 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-07 15:10:23,847 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-07 15:10:23,847 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-07 15:10:23,849 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-07 15:10:23,850 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-07 15:10:23,850 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-07 15:10:23,852 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-07 15:10:23,852 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-07 15:10:23,853 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-07 15:10:23,853 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-07 15:10:23,853 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-07 15:10:23,855 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-07 15:10:23,856 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-07 15:10:23,857 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-07 15:10:23,888 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-07 15:10:23,888 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-07 15:10:23,893 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-07 15:10:23,893 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-07 15:10:23,893 INFO L138 SettingsManager]: * Use SBE=true [2019-10-07 15:10:23,893 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-07 15:10:23,894 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-07 15:10:23,894 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-07 15:10:23,894 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-07 15:10:23,894 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-07 15:10:23,894 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-07 15:10:23,895 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-07 15:10:23,895 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-07 15:10:23,895 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-07 15:10:23,897 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-07 15:10:23,897 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-07 15:10:23,897 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-07 15:10:23,897 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-07 15:10:23,898 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-07 15:10:23,898 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-07 15:10:23,898 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-07 15:10:23,898 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 15:10:23,898 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-07 15:10:23,899 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-07 15:10:23,899 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-07 15:10:23,899 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-07 15:10:23,899 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-07 15:10:23,899 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-07 15:10:23,900 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-10-07 15:10:24,157 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-07 15:10:24,179 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-07 15:10:24,183 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-07 15:10:24,184 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-07 15:10:24,184 INFO L275 PluginConnector]: CDTParser initialized [2019-10-07 15:10:24,185 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec9_product16.cil.c [2019-10-07 15:10:24,259 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/61c653258/bfb78bc9e2e349cd806ffa827de0a189/FLAG37136f0e2 [2019-10-07 15:10:24,853 INFO L306 CDTParser]: Found 1 translation units. [2019-10-07 15:10:24,853 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec9_product16.cil.c [2019-10-07 15:10:24,877 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/61c653258/bfb78bc9e2e349cd806ffa827de0a189/FLAG37136f0e2 [2019-10-07 15:10:25,086 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/61c653258/bfb78bc9e2e349cd806ffa827de0a189 [2019-10-07 15:10:25,093 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-07 15:10:25,095 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-07 15:10:25,096 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-07 15:10:25,096 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-07 15:10:25,101 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-07 15:10:25,102 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 03:10:25" (1/1) ... [2019-10-07 15:10:25,105 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b91cb92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:10:25, skipping insertion in model container [2019-10-07 15:10:25,105 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 03:10:25" (1/1) ... [2019-10-07 15:10:25,112 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-07 15:10:25,192 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-07 15:10:25,979 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 15:10:26,012 INFO L188 MainTranslator]: Completed pre-run [2019-10-07 15:10:26,198 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 15:10:26,304 INFO L192 MainTranslator]: Completed translation [2019-10-07 15:10:26,304 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:10:26 WrapperNode [2019-10-07 15:10:26,304 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-07 15:10:26,305 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-07 15:10:26,305 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-07 15:10:26,305 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-07 15:10:26,319 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:10:26" (1/1) ... [2019-10-07 15:10:26,320 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:10:26" (1/1) ... [2019-10-07 15:10:26,349 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:10:26" (1/1) ... [2019-10-07 15:10:26,350 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:10:26" (1/1) ... [2019-10-07 15:10:26,402 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:10:26" (1/1) ... [2019-10-07 15:10:26,424 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:10:26" (1/1) ... [2019-10-07 15:10:26,437 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:10:26" (1/1) ... [2019-10-07 15:10:26,470 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-07 15:10:26,470 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-07 15:10:26,471 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-07 15:10:26,471 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-07 15:10:26,473 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:10:26" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 15:10:26,550 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-07 15:10:26,551 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-07 15:10:26,551 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-07 15:10:26,551 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptForward_spec__1 [2019-10-07 15:10:26,551 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptForward_spec__2 [2019-10-07 15:10:26,553 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-07 15:10:26,553 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-07 15:10:26,554 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-07 15:10:26,554 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-07 15:10:26,554 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-07 15:10:26,555 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-07 15:10:26,556 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-07 15:10:26,556 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-07 15:10:26,556 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-07 15:10:26,556 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-07 15:10:26,557 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-07 15:10:26,559 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-07 15:10:26,559 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-07 15:10:26,559 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-07 15:10:26,560 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-07 15:10:26,560 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-07 15:10:26,560 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-07 15:10:26,561 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-07 15:10:26,561 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-07 15:10:26,561 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-07 15:10:26,561 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-07 15:10:26,562 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-07 15:10:26,562 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-07 15:10:26,562 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-07 15:10:26,562 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-07 15:10:26,562 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-07 15:10:26,563 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-07 15:10:26,563 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-07 15:10:26,563 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-07 15:10:26,563 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-07 15:10:26,563 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-07 15:10:26,564 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-07 15:10:26,564 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-07 15:10:26,564 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-07 15:10:26,564 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-07 15:10:26,564 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-07 15:10:26,565 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-07 15:10:26,565 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-07 15:10:26,565 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Encrypt [2019-10-07 15:10:26,565 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Forward [2019-10-07 15:10:26,565 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-07 15:10:26,566 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-07 15:10:26,566 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-07 15:10:26,566 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-07 15:10:26,566 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-07 15:10:26,566 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-07 15:10:26,566 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-07 15:10:26,567 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-07 15:10:26,567 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-07 15:10:26,567 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-10-07 15:10:26,567 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-07 15:10:26,567 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-07 15:10:26,568 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-07 15:10:26,568 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-07 15:10:26,569 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-07 15:10:26,569 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-07 15:10:26,569 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-07 15:10:26,569 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-07 15:10:26,569 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-07 15:10:26,569 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-07 15:10:26,570 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-07 15:10:26,570 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-07 15:10:26,570 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-07 15:10:26,570 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-07 15:10:26,570 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-07 15:10:26,571 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-07 15:10:26,571 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-07 15:10:26,571 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-07 15:10:26,572 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-07 15:10:26,572 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-07 15:10:26,572 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-07 15:10:26,573 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-07 15:10:26,573 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-07 15:10:26,573 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-07 15:10:26,574 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-07 15:10:26,574 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-10-07 15:10:26,575 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-07 15:10:26,575 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-07 15:10:26,575 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-07 15:10:26,575 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-07 15:10:26,575 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-07 15:10:26,576 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-07 15:10:26,577 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-07 15:10:26,577 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-07 15:10:26,577 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-07 15:10:26,577 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-07 15:10:26,577 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-07 15:10:26,578 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-07 15:10:26,578 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-07 15:10:26,578 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-07 15:10:26,578 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-07 15:10:26,578 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-07 15:10:26,578 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-07 15:10:26,579 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-07 15:10:26,579 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-07 15:10:26,579 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-07 15:10:26,579 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-07 15:10:26,579 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-07 15:10:26,579 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-07 15:10:26,580 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-07 15:10:26,580 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-07 15:10:26,580 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-07 15:10:26,580 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-07 15:10:26,580 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-07 15:10:26,581 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-07 15:10:26,581 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-07 15:10:26,581 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-07 15:10:26,581 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-07 15:10:26,581 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-07 15:10:26,581 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-07 15:10:26,582 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-07 15:10:26,582 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptForward_spec__1 [2019-10-07 15:10:26,582 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-07 15:10:26,583 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptForward_spec__2 [2019-10-07 15:10:26,583 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-07 15:10:26,583 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-07 15:10:26,583 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-07 15:10:26,584 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-07 15:10:26,584 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-07 15:10:26,585 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-07 15:10:26,585 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-07 15:10:26,585 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-07 15:10:26,586 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-07 15:10:26,586 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-07 15:10:26,586 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-07 15:10:26,586 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-07 15:10:26,587 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-07 15:10:26,587 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-07 15:10:26,588 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-07 15:10:26,592 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-07 15:10:26,592 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-07 15:10:26,592 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-07 15:10:26,592 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-07 15:10:26,593 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-07 15:10:26,593 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-07 15:10:26,593 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-07 15:10:26,593 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-07 15:10:26,593 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-07 15:10:26,594 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-07 15:10:26,602 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-07 15:10:26,602 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-07 15:10:26,602 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-07 15:10:26,602 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-07 15:10:26,602 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-07 15:10:26,603 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-07 15:10:26,603 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-07 15:10:26,603 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-07 15:10:26,603 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-07 15:10:26,603 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-07 15:10:26,603 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-07 15:10:26,603 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-07 15:10:26,603 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-07 15:10:26,604 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-07 15:10:26,604 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-07 15:10:26,604 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-07 15:10:26,604 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-07 15:10:26,605 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-07 15:10:26,605 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-07 15:10:26,605 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-07 15:10:26,605 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-07 15:10:26,605 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-07 15:10:26,606 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-07 15:10:26,606 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-07 15:10:26,606 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-07 15:10:26,606 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-07 15:10:26,606 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-07 15:10:26,606 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-07 15:10:26,606 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-07 15:10:26,606 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-07 15:10:26,607 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-07 15:10:26,607 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-07 15:10:26,607 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-07 15:10:26,607 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-07 15:10:26,607 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-07 15:10:26,607 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-07 15:10:26,607 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-10-07 15:10:26,608 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-07 15:10:26,608 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Encrypt [2019-10-07 15:10:26,608 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Forward [2019-10-07 15:10:26,608 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-07 15:10:26,608 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-07 15:10:26,608 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-07 15:10:26,608 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-07 15:10:26,608 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-07 15:10:26,609 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-07 15:10:26,609 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-07 15:10:26,609 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-07 15:10:26,609 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-10-07 15:10:26,609 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-07 15:10:26,609 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-07 15:10:26,609 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-07 15:10:26,609 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-07 15:10:26,610 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-07 15:10:26,610 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-07 15:10:26,610 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-07 15:10:26,610 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-07 15:10:26,610 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-07 15:10:26,610 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-07 15:10:26,610 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-07 15:10:26,610 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-07 15:10:26,611 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-07 15:10:26,611 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-07 15:10:26,611 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-07 15:10:26,611 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-07 15:10:26,611 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-07 15:10:26,611 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-07 15:10:26,611 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-07 15:10:26,612 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-07 15:10:26,612 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-07 15:10:26,612 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-07 15:10:26,612 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-07 15:10:26,612 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-07 15:10:26,612 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-07 15:10:26,612 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-07 15:10:26,612 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-07 15:10:26,613 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-07 15:10:26,613 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-07 15:10:26,613 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-07 15:10:26,613 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-07 15:10:26,613 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-07 15:10:26,613 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-07 15:10:26,613 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-07 15:10:26,613 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-07 15:10:26,614 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-07 15:10:26,614 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-07 15:10:26,614 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-07 15:10:26,614 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-07 15:10:26,614 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-07 15:10:26,614 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-07 15:10:26,614 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-07 15:10:30,888 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-07 15:10:30,889 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-07 15:10:30,891 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 03:10:30 BoogieIcfgContainer [2019-10-07 15:10:30,891 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-07 15:10:30,892 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-07 15:10:30,892 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-07 15:10:30,895 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-07 15:10:30,896 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.10 03:10:25" (1/3) ... [2019-10-07 15:10:30,896 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d8bd3c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 03:10:30, skipping insertion in model container [2019-10-07 15:10:30,897 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:10:26" (2/3) ... [2019-10-07 15:10:30,897 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d8bd3c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 03:10:30, skipping insertion in model container [2019-10-07 15:10:30,897 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 03:10:30" (3/3) ... [2019-10-07 15:10:30,899 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec9_product16.cil.c [2019-10-07 15:10:30,908 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-07 15:10:30,917 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-07 15:10:30,931 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-07 15:10:30,959 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-07 15:10:30,959 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-07 15:10:30,959 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-07 15:10:30,959 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-07 15:10:30,960 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-07 15:10:30,960 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-07 15:10:30,960 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-07 15:10:30,960 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-07 15:10:30,986 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states. [2019-10-07 15:10:31,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2019-10-07 15:10:31,001 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:10:31,002 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:10:31,004 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:10:31,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:10:31,010 INFO L82 PathProgramCache]: Analyzing trace with hash 773605276, now seen corresponding path program 1 times [2019-10-07 15:10:31,019 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:10:31,019 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:10:31,020 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:10:31,020 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:10:31,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:10:31,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:10:31,573 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-07 15:10:31,573 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:10:31,574 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:10:31,574 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-07 15:10:31,578 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-07 15:10:31,592 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-07 15:10:31,593 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-07 15:10:31,595 INFO L87 Difference]: Start difference. First operand 351 states. Second operand 2 states. [2019-10-07 15:10:31,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:10:31,659 INFO L93 Difference]: Finished difference Result 510 states and 601 transitions. [2019-10-07 15:10:31,659 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-07 15:10:31,660 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 114 [2019-10-07 15:10:31,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:10:31,688 INFO L225 Difference]: With dead ends: 510 [2019-10-07 15:10:31,690 INFO L226 Difference]: Without dead ends: 330 [2019-10-07 15:10:31,697 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-07 15:10:31,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 330 states. [2019-10-07 15:10:31,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 330 to 330. [2019-10-07 15:10:31,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 330 states. [2019-10-07 15:10:31,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 330 states and 389 transitions. [2019-10-07 15:10:31,801 INFO L78 Accepts]: Start accepts. Automaton has 330 states and 389 transitions. Word has length 114 [2019-10-07 15:10:31,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:10:31,803 INFO L462 AbstractCegarLoop]: Abstraction has 330 states and 389 transitions. [2019-10-07 15:10:31,803 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-07 15:10:31,803 INFO L276 IsEmpty]: Start isEmpty. Operand 330 states and 389 transitions. [2019-10-07 15:10:31,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2019-10-07 15:10:31,808 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:10:31,808 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:10:31,808 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:10:31,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:10:31,809 INFO L82 PathProgramCache]: Analyzing trace with hash 1260048779, now seen corresponding path program 1 times [2019-10-07 15:10:31,809 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:10:31,809 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:10:31,809 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:10:31,810 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:10:31,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:10:31,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:10:32,095 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-07 15:10:32,096 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:10:32,096 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:10:32,096 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 15:10:32,104 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 15:10:32,104 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 15:10:32,105 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:10:32,105 INFO L87 Difference]: Start difference. First operand 330 states and 389 transitions. Second operand 3 states. [2019-10-07 15:10:32,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:10:32,169 INFO L93 Difference]: Finished difference Result 495 states and 573 transitions. [2019-10-07 15:10:32,169 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 15:10:32,169 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 115 [2019-10-07 15:10:32,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:10:32,176 INFO L225 Difference]: With dead ends: 495 [2019-10-07 15:10:32,177 INFO L226 Difference]: Without dead ends: 332 [2019-10-07 15:10:32,179 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:10:32,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 332 states. [2019-10-07 15:10:32,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 332 to 332. [2019-10-07 15:10:32,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 332 states. [2019-10-07 15:10:32,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 332 states to 332 states and 391 transitions. [2019-10-07 15:10:32,208 INFO L78 Accepts]: Start accepts. Automaton has 332 states and 391 transitions. Word has length 115 [2019-10-07 15:10:32,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:10:32,209 INFO L462 AbstractCegarLoop]: Abstraction has 332 states and 391 transitions. [2019-10-07 15:10:32,209 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 15:10:32,209 INFO L276 IsEmpty]: Start isEmpty. Operand 332 states and 391 transitions. [2019-10-07 15:10:32,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2019-10-07 15:10:32,213 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:10:32,213 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:10:32,213 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:10:32,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:10:32,261 INFO L82 PathProgramCache]: Analyzing trace with hash -599954487, now seen corresponding path program 1 times [2019-10-07 15:10:32,262 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:10:32,262 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:10:32,262 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:10:32,262 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:10:32,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:10:32,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:10:32,408 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-07 15:10:32,408 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:10:32,408 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:10:32,408 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 15:10:32,411 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 15:10:32,411 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 15:10:32,412 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:10:32,412 INFO L87 Difference]: Start difference. First operand 332 states and 391 transitions. Second operand 3 states. [2019-10-07 15:10:32,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:10:32,476 INFO L93 Difference]: Finished difference Result 646 states and 789 transitions. [2019-10-07 15:10:32,476 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 15:10:32,476 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 120 [2019-10-07 15:10:32,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:10:32,481 INFO L225 Difference]: With dead ends: 646 [2019-10-07 15:10:32,482 INFO L226 Difference]: Without dead ends: 372 [2019-10-07 15:10:32,484 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:10:32,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 372 states. [2019-10-07 15:10:32,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 372 to 371. [2019-10-07 15:10:32,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 371 states. [2019-10-07 15:10:32,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 371 states to 371 states and 459 transitions. [2019-10-07 15:10:32,510 INFO L78 Accepts]: Start accepts. Automaton has 371 states and 459 transitions. Word has length 120 [2019-10-07 15:10:32,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:10:32,511 INFO L462 AbstractCegarLoop]: Abstraction has 371 states and 459 transitions. [2019-10-07 15:10:32,511 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 15:10:32,511 INFO L276 IsEmpty]: Start isEmpty. Operand 371 states and 459 transitions. [2019-10-07 15:10:32,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2019-10-07 15:10:32,514 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:10:32,514 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:10:32,515 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:10:32,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:10:32,515 INFO L82 PathProgramCache]: Analyzing trace with hash -1404061938, now seen corresponding path program 1 times [2019-10-07 15:10:32,516 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:10:32,516 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:10:32,516 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:10:32,517 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:10:32,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:10:32,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:10:32,684 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-07 15:10:32,684 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:10:32,684 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:10:32,684 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 15:10:32,685 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 15:10:32,685 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 15:10:32,686 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:10:32,686 INFO L87 Difference]: Start difference. First operand 371 states and 459 transitions. Second operand 3 states. [2019-10-07 15:10:32,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:10:32,718 INFO L93 Difference]: Finished difference Result 567 states and 681 transitions. [2019-10-07 15:10:32,719 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 15:10:32,719 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 121 [2019-10-07 15:10:32,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:10:32,723 INFO L225 Difference]: With dead ends: 567 [2019-10-07 15:10:32,723 INFO L226 Difference]: Without dead ends: 405 [2019-10-07 15:10:32,724 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:10:32,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 405 states. [2019-10-07 15:10:32,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 405 to 405. [2019-10-07 15:10:32,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 405 states. [2019-10-07 15:10:32,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 405 states to 405 states and 491 transitions. [2019-10-07 15:10:32,749 INFO L78 Accepts]: Start accepts. Automaton has 405 states and 491 transitions. Word has length 121 [2019-10-07 15:10:32,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:10:32,750 INFO L462 AbstractCegarLoop]: Abstraction has 405 states and 491 transitions. [2019-10-07 15:10:32,750 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 15:10:32,750 INFO L276 IsEmpty]: Start isEmpty. Operand 405 states and 491 transitions. [2019-10-07 15:10:32,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2019-10-07 15:10:32,754 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:10:32,755 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:10:32,755 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:10:32,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:10:32,755 INFO L82 PathProgramCache]: Analyzing trace with hash 903210349, now seen corresponding path program 1 times [2019-10-07 15:10:32,756 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:10:32,756 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:10:32,756 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:10:32,756 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:10:32,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:10:32,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:10:33,172 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-07 15:10:33,173 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:10:33,173 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:10:33,173 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-10-07 15:10:33,174 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-07 15:10:33,174 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-07 15:10:33,175 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2019-10-07 15:10:33,175 INFO L87 Difference]: Start difference. First operand 405 states and 491 transitions. Second operand 11 states. [2019-10-07 15:10:35,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:10:35,624 INFO L93 Difference]: Finished difference Result 481 states and 562 transitions. [2019-10-07 15:10:35,625 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-07 15:10:35,625 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 206 [2019-10-07 15:10:35,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:10:35,630 INFO L225 Difference]: With dead ends: 481 [2019-10-07 15:10:35,630 INFO L226 Difference]: Without dead ends: 413 [2019-10-07 15:10:35,631 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=270, Unknown=0, NotChecked=0, Total=342 [2019-10-07 15:10:35,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 413 states. [2019-10-07 15:10:35,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 413 to 413. [2019-10-07 15:10:35,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 413 states. [2019-10-07 15:10:35,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 413 states to 413 states and 493 transitions. [2019-10-07 15:10:35,655 INFO L78 Accepts]: Start accepts. Automaton has 413 states and 493 transitions. Word has length 206 [2019-10-07 15:10:35,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:10:35,656 INFO L462 AbstractCegarLoop]: Abstraction has 413 states and 493 transitions. [2019-10-07 15:10:35,656 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-07 15:10:35,656 INFO L276 IsEmpty]: Start isEmpty. Operand 413 states and 493 transitions. [2019-10-07 15:10:35,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 253 [2019-10-07 15:10:35,660 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:10:35,661 INFO L385 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:10:35,661 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:10:35,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:10:35,661 INFO L82 PathProgramCache]: Analyzing trace with hash -531671626, now seen corresponding path program 1 times [2019-10-07 15:10:35,662 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:10:35,662 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:10:35,662 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:10:35,662 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:10:35,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:10:35,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:10:36,164 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 2 proven. 17 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2019-10-07 15:10:36,164 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:10:36,164 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 15:10:36,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 15:10:36,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:10:36,730 INFO L256 TraceCheckSpWp]: Trace formula consists of 3018 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-07 15:10:36,765 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 15:10:36,914 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2019-10-07 15:10:36,914 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 15:10:37,628 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2019-10-07 15:10:37,628 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2019-10-07 15:10:37,661 INFO L162 IcfgInterpreter]: Started Sifa with 205 locations of interest [2019-10-07 15:10:37,662 INFO L169 IcfgInterpreter]: Building call graph [2019-10-07 15:10:37,669 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-07 15:10:37,676 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-07 15:10:37,677 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-07 15:11:22,495 WARN L191 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 677 [2019-10-07 15:11:25,914 WARN L191 SmtUtils]: Spent 1.16 s on a formula simplification. DAG size of input: 301 DAG size of output: 245 [2019-10-07 15:11:26,370 WARN L191 SmtUtils]: Spent 449.00 ms on a formula simplification that was a NOOP. DAG size: 715 [2019-10-07 15:11:26,689 WARN L191 SmtUtils]: Spent 315.00 ms on a formula simplification that was a NOOP. DAG size: 715 [2019-10-07 15:11:26,965 WARN L191 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 715 [2019-10-07 15:11:27,169 WARN L191 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 447 [2019-10-07 15:11:27,808 WARN L191 SmtUtils]: Spent 637.00 ms on a formula simplification that was a NOOP. DAG size: 1011 [2019-10-07 15:11:28,451 WARN L191 SmtUtils]: Spent 624.00 ms on a formula simplification that was a NOOP. DAG size: 1011 [2019-10-07 15:11:29,045 WARN L191 SmtUtils]: Spent 591.00 ms on a formula simplification that was a NOOP. DAG size: 1011 [2019-10-07 15:11:29,187 WARN L191 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 447 [2019-10-07 15:11:29,787 WARN L191 SmtUtils]: Spent 598.00 ms on a formula simplification that was a NOOP. DAG size: 1011 [2019-10-07 15:11:30,973 WARN L191 SmtUtils]: Spent 1.16 s on a formula simplification. DAG size of input: 1013 DAG size of output: 1011 [2019-10-07 15:11:31,542 WARN L191 SmtUtils]: Spent 565.00 ms on a formula simplification that was a NOOP. DAG size: 1011 [2019-10-07 15:11:31,672 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 447 [2019-10-07 15:11:32,252 WARN L191 SmtUtils]: Spent 577.00 ms on a formula simplification that was a NOOP. DAG size: 1011 [2019-10-07 15:11:32,858 WARN L191 SmtUtils]: Spent 603.00 ms on a formula simplification that was a NOOP. DAG size: 1011 [2019-10-07 15:11:33,431 WARN L191 SmtUtils]: Spent 569.00 ms on a formula simplification that was a NOOP. DAG size: 1011 [2019-10-07 15:11:33,561 WARN L191 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 447 [2019-10-07 15:11:34,145 WARN L191 SmtUtils]: Spent 582.00 ms on a formula simplification that was a NOOP. DAG size: 1011 [2019-10-07 15:11:34,168 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 556 for LOIs [2019-10-07 15:11:34,519 WARN L191 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 644 [2019-10-07 15:11:34,737 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 447 [2019-10-07 15:11:35,205 WARN L191 SmtUtils]: Spent 466.00 ms on a formula simplification that was a NOOP. DAG size: 940 [2019-10-07 15:11:35,207 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 1049 for LOIs [2019-10-07 15:11:35,770 WARN L191 SmtUtils]: Spent 562.00 ms on a formula simplification that was a NOOP. DAG size: 1049 [2019-10-07 15:11:36,353 WARN L191 SmtUtils]: Spent 579.00 ms on a formula simplification that was a NOOP. DAG size: 1049 [2019-10-07 15:11:36,544 WARN L191 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:11:37,362 WARN L191 SmtUtils]: Spent 816.00 ms on a formula simplification that was a NOOP. DAG size: 1167 [2019-10-07 15:11:37,945 WARN L191 SmtUtils]: Spent 562.00 ms on a formula simplification that was a NOOP. DAG size: 1049 [2019-10-07 15:11:38,523 WARN L191 SmtUtils]: Spent 574.00 ms on a formula simplification that was a NOOP. DAG size: 1049 [2019-10-07 15:11:38,738 WARN L191 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:11:39,548 WARN L191 SmtUtils]: Spent 807.00 ms on a formula simplification that was a NOOP. DAG size: 1167 [2019-10-07 15:11:40,150 WARN L191 SmtUtils]: Spent 570.00 ms on a formula simplification that was a NOOP. DAG size: 1049 [2019-10-07 15:11:40,722 WARN L191 SmtUtils]: Spent 568.00 ms on a formula simplification that was a NOOP. DAG size: 1049 [2019-10-07 15:11:40,912 WARN L191 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:11:41,699 WARN L191 SmtUtils]: Spent 784.00 ms on a formula simplification that was a NOOP. DAG size: 1167 [2019-10-07 15:11:42,787 WARN L191 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 1169 DAG size of output: 1049 [2019-10-07 15:11:43,360 WARN L191 SmtUtils]: Spent 570.00 ms on a formula simplification that was a NOOP. DAG size: 1049 [2019-10-07 15:11:43,578 WARN L191 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:11:44,372 WARN L191 SmtUtils]: Spent 791.00 ms on a formula simplification that was a NOOP. DAG size: 1167 [2019-10-07 15:11:44,960 WARN L191 SmtUtils]: Spent 574.00 ms on a formula simplification that was a NOOP. DAG size: 1049 [2019-10-07 15:11:45,520 WARN L191 SmtUtils]: Spent 557.00 ms on a formula simplification that was a NOOP. DAG size: 1049 [2019-10-07 15:11:45,706 WARN L191 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:11:46,505 WARN L191 SmtUtils]: Spent 797.00 ms on a formula simplification that was a NOOP. DAG size: 1167 [2019-10-07 15:11:47,066 WARN L191 SmtUtils]: Spent 559.00 ms on a formula simplification that was a NOOP. DAG size: 1049 [2019-10-07 15:11:47,643 WARN L191 SmtUtils]: Spent 573.00 ms on a formula simplification that was a NOOP. DAG size: 1049 [2019-10-07 15:11:47,847 WARN L191 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:11:48,636 WARN L191 SmtUtils]: Spent 787.00 ms on a formula simplification that was a NOOP. DAG size: 1167 [2019-10-07 15:11:49,212 WARN L191 SmtUtils]: Spent 573.00 ms on a formula simplification that was a NOOP. DAG size: 1049 [2019-10-07 15:11:49,789 WARN L191 SmtUtils]: Spent 574.00 ms on a formula simplification that was a NOOP. DAG size: 1049 [2019-10-07 15:11:49,980 WARN L191 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:11:50,771 WARN L191 SmtUtils]: Spent 789.00 ms on a formula simplification that was a NOOP. DAG size: 1167 [2019-10-07 15:11:51,332 WARN L191 SmtUtils]: Spent 558.00 ms on a formula simplification that was a NOOP. DAG size: 1049 [2019-10-07 15:11:51,901 WARN L191 SmtUtils]: Spent 565.00 ms on a formula simplification that was a NOOP. DAG size: 1049 [2019-10-07 15:11:52,088 WARN L191 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:11:52,882 WARN L191 SmtUtils]: Spent 792.00 ms on a formula simplification that was a NOOP. DAG size: 1167 [2019-10-07 15:11:53,452 WARN L191 SmtUtils]: Spent 566.00 ms on a formula simplification that was a NOOP. DAG size: 1049 [2019-10-07 15:11:54,030 WARN L191 SmtUtils]: Spent 575.00 ms on a formula simplification that was a NOOP. DAG size: 1049 [2019-10-07 15:11:54,217 WARN L191 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:11:55,010 WARN L191 SmtUtils]: Spent 790.00 ms on a formula simplification that was a NOOP. DAG size: 1167 [2019-10-07 15:11:55,570 WARN L191 SmtUtils]: Spent 558.00 ms on a formula simplification that was a NOOP. DAG size: 1049 [2019-10-07 15:11:56,145 WARN L191 SmtUtils]: Spent 572.00 ms on a formula simplification that was a NOOP. DAG size: 1049 [2019-10-07 15:11:56,331 WARN L191 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:11:57,120 WARN L191 SmtUtils]: Spent 787.00 ms on a formula simplification that was a NOOP. DAG size: 1167 [2019-10-07 15:11:57,685 WARN L191 SmtUtils]: Spent 562.00 ms on a formula simplification that was a NOOP. DAG size: 1049 [2019-10-07 15:11:58,248 WARN L191 SmtUtils]: Spent 560.00 ms on a formula simplification that was a NOOP. DAG size: 1049 [2019-10-07 15:11:58,433 WARN L191 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:11:59,240 WARN L191 SmtUtils]: Spent 805.00 ms on a formula simplification that was a NOOP. DAG size: 1167 [2019-10-07 15:11:59,801 WARN L191 SmtUtils]: Spent 559.00 ms on a formula simplification that was a NOOP. DAG size: 1049 [2019-10-07 15:12:00,368 WARN L191 SmtUtils]: Spent 564.00 ms on a formula simplification that was a NOOP. DAG size: 1049 [2019-10-07 15:12:00,553 WARN L191 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:12:01,338 WARN L191 SmtUtils]: Spent 783.00 ms on a formula simplification that was a NOOP. DAG size: 1167 [2019-10-07 15:12:01,907 WARN L191 SmtUtils]: Spent 566.00 ms on a formula simplification that was a NOOP. DAG size: 1049 [2019-10-07 15:12:02,470 WARN L191 SmtUtils]: Spent 560.00 ms on a formula simplification that was a NOOP. DAG size: 1049 [2019-10-07 15:12:02,653 WARN L191 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:12:03,444 WARN L191 SmtUtils]: Spent 789.00 ms on a formula simplification that was a NOOP. DAG size: 1167 [2019-10-07 15:12:04,304 WARN L191 SmtUtils]: Spent 815.00 ms on a formula simplification that was a NOOP. DAG size: 1167 [2019-10-07 15:12:05,102 WARN L191 SmtUtils]: Spent 794.00 ms on a formula simplification that was a NOOP. DAG size: 1167 [2019-10-07 15:12:05,396 WARN L191 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:12:06,185 WARN L191 SmtUtils]: Spent 786.00 ms on a formula simplification that was a NOOP. DAG size: 1167 [2019-10-07 15:12:07,621 WARN L191 SmtUtils]: Spent 1.42 s on a formula simplification. DAG size of input: 1169 DAG size of output: 1167 [2019-10-07 15:12:08,419 WARN L191 SmtUtils]: Spent 794.00 ms on a formula simplification that was a NOOP. DAG size: 1167 [2019-10-07 15:12:08,618 WARN L191 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:12:09,424 WARN L191 SmtUtils]: Spent 804.00 ms on a formula simplification that was a NOOP. DAG size: 1167 [2019-10-07 15:12:10,216 WARN L191 SmtUtils]: Spent 789.00 ms on a formula simplification that was a NOOP. DAG size: 1167 [2019-10-07 15:12:11,012 WARN L191 SmtUtils]: Spent 793.00 ms on a formula simplification that was a NOOP. DAG size: 1167 [2019-10-07 15:12:11,202 WARN L191 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:12:11,995 WARN L191 SmtUtils]: Spent 791.00 ms on a formula simplification that was a NOOP. DAG size: 1167 [2019-10-07 15:12:12,854 WARN L191 SmtUtils]: Spent 825.00 ms on a formula simplification that was a NOOP. DAG size: 1169 [2019-10-07 15:12:13,646 WARN L191 SmtUtils]: Spent 789.00 ms on a formula simplification that was a NOOP. DAG size: 1169 [2019-10-07 15:12:13,839 WARN L191 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2019-10-07 15:12:14,645 WARN L191 SmtUtils]: Spent 805.00 ms on a formula simplification that was a NOOP. DAG size: 1171 [2019-10-07 15:12:15,474 WARN L191 SmtUtils]: Spent 809.00 ms on a formula simplification that was a NOOP. DAG size: 1171 [2019-10-07 15:12:16,291 WARN L191 SmtUtils]: Spent 813.00 ms on a formula simplification that was a NOOP. DAG size: 1171 [2019-10-07 15:12:16,488 WARN L191 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2019-10-07 15:12:17,293 WARN L191 SmtUtils]: Spent 803.00 ms on a formula simplification that was a NOOP. DAG size: 1171 [2019-10-07 15:12:18,708 WARN L191 SmtUtils]: Spent 1.41 s on a formula simplification. DAG size of input: 1173 DAG size of output: 1169 [2019-10-07 15:12:19,503 WARN L191 SmtUtils]: Spent 792.00 ms on a formula simplification that was a NOOP. DAG size: 1169 [2019-10-07 15:12:19,700 WARN L191 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2019-10-07 15:12:20,496 WARN L191 SmtUtils]: Spent 794.00 ms on a formula simplification that was a NOOP. DAG size: 1171 [2019-10-07 15:12:21,302 WARN L191 SmtUtils]: Spent 798.00 ms on a formula simplification that was a NOOP. DAG size: 1176 [2019-10-07 15:12:22,108 WARN L191 SmtUtils]: Spent 802.00 ms on a formula simplification that was a NOOP. DAG size: 1176 [2019-10-07 15:12:22,331 WARN L191 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2019-10-07 15:12:23,139 WARN L191 SmtUtils]: Spent 806.00 ms on a formula simplification that was a NOOP. DAG size: 1176 [2019-10-07 15:12:23,953 WARN L191 SmtUtils]: Spent 810.00 ms on a formula simplification that was a NOOP. DAG size: 1178 [2019-10-07 15:12:24,777 WARN L191 SmtUtils]: Spent 820.00 ms on a formula simplification that was a NOOP. DAG size: 1178 [2019-10-07 15:12:24,972 WARN L191 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2019-10-07 15:12:25,777 WARN L191 SmtUtils]: Spent 802.00 ms on a formula simplification that was a NOOP. DAG size: 1178 [2019-10-07 15:12:27,966 WARN L191 SmtUtils]: Spent 2.15 s on a formula simplification. DAG size of input: 1169 DAG size of output: 1167 [2019-10-07 15:12:28,772 WARN L191 SmtUtils]: Spent 799.00 ms on a formula simplification that was a NOOP. DAG size: 1167 [2019-10-07 15:12:28,981 WARN L191 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:12:29,780 WARN L191 SmtUtils]: Spent 797.00 ms on a formula simplification that was a NOOP. DAG size: 1167 [2019-10-07 15:12:31,236 WARN L191 SmtUtils]: Spent 1.44 s on a formula simplification. DAG size of input: 1169 DAG size of output: 1167 [2019-10-07 15:12:32,037 WARN L191 SmtUtils]: Spent 798.00 ms on a formula simplification that was a NOOP. DAG size: 1167 [2019-10-07 15:12:32,239 WARN L191 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:12:33,036 WARN L191 SmtUtils]: Spent 795.00 ms on a formula simplification that was a NOOP. DAG size: 1167 [2019-10-07 15:12:33,843 WARN L191 SmtUtils]: Spent 804.00 ms on a formula simplification that was a NOOP. DAG size: 1167 [2019-10-07 15:12:34,649 WARN L191 SmtUtils]: Spent 802.00 ms on a formula simplification that was a NOOP. DAG size: 1167 [2019-10-07 15:12:34,838 WARN L191 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:12:35,637 WARN L191 SmtUtils]: Spent 796.00 ms on a formula simplification that was a NOOP. DAG size: 1167 [2019-10-07 15:12:37,882 WARN L191 SmtUtils]: Spent 2.20 s on a formula simplification. DAG size of input: 1169 DAG size of output: 1167 [2019-10-07 15:12:38,687 WARN L191 SmtUtils]: Spent 802.00 ms on a formula simplification that was a NOOP. DAG size: 1167 [2019-10-07 15:12:38,880 WARN L191 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:12:39,687 WARN L191 SmtUtils]: Spent 804.00 ms on a formula simplification that was a NOOP. DAG size: 1167 [2019-10-07 15:12:41,133 WARN L191 SmtUtils]: Spent 1.44 s on a formula simplification. DAG size of input: 1169 DAG size of output: 1167 [2019-10-07 15:12:41,941 WARN L191 SmtUtils]: Spent 804.00 ms on a formula simplification that was a NOOP. DAG size: 1167 [2019-10-07 15:12:42,136 WARN L191 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:12:42,940 WARN L191 SmtUtils]: Spent 803.00 ms on a formula simplification that was a NOOP. DAG size: 1167 [2019-10-07 15:12:43,744 WARN L191 SmtUtils]: Spent 800.00 ms on a formula simplification that was a NOOP. DAG size: 1167 [2019-10-07 15:12:44,546 WARN L191 SmtUtils]: Spent 799.00 ms on a formula simplification that was a NOOP. DAG size: 1167 [2019-10-07 15:12:44,734 WARN L191 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:12:45,542 WARN L191 SmtUtils]: Spent 806.00 ms on a formula simplification that was a NOOP. DAG size: 1167 [2019-10-07 15:12:46,369 WARN L191 SmtUtils]: Spent 798.00 ms on a formula simplification that was a NOOP. DAG size: 1171 [2019-10-07 15:12:47,183 WARN L191 SmtUtils]: Spent 811.00 ms on a formula simplification that was a NOOP. DAG size: 1171 [2019-10-07 15:12:47,377 WARN L191 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2019-10-07 15:12:48,187 WARN L191 SmtUtils]: Spent 808.00 ms on a formula simplification that was a NOOP. DAG size: 1171 [2019-10-07 15:12:49,008 WARN L191 SmtUtils]: Spent 807.00 ms on a formula simplification that was a NOOP. DAG size: 1171 [2019-10-07 15:12:49,815 WARN L191 SmtUtils]: Spent 804.00 ms on a formula simplification that was a NOOP. DAG size: 1171 [2019-10-07 15:12:50,019 WARN L191 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2019-10-07 15:12:50,837 WARN L191 SmtUtils]: Spent 816.00 ms on a formula simplification that was a NOOP. DAG size: 1171 [2019-10-07 15:12:51,653 WARN L191 SmtUtils]: Spent 813.00 ms on a formula simplification that was a NOOP. DAG size: 1171 [2019-10-07 15:12:52,461 WARN L191 SmtUtils]: Spent 805.00 ms on a formula simplification that was a NOOP. DAG size: 1171 [2019-10-07 15:12:52,651 WARN L191 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2019-10-07 15:12:53,464 WARN L191 SmtUtils]: Spent 811.00 ms on a formula simplification that was a NOOP. DAG size: 1171 [2019-10-07 15:12:54,915 WARN L191 SmtUtils]: Spent 1.44 s on a formula simplification. DAG size of input: 1178 DAG size of output: 1169 [2019-10-07 15:12:55,733 WARN L191 SmtUtils]: Spent 815.00 ms on a formula simplification that was a NOOP. DAG size: 1169 [2019-10-07 15:12:55,930 WARN L191 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2019-10-07 15:12:56,738 WARN L191 SmtUtils]: Spent 805.00 ms on a formula simplification that was a NOOP. DAG size: 1171 [2019-10-07 15:12:58,102 WARN L191 SmtUtils]: Spent 1.36 s on a formula simplification. DAG size of input: 1180 DAG size of output: 1171 [2019-10-07 15:12:58,925 WARN L191 SmtUtils]: Spent 818.00 ms on a formula simplification that was a NOOP. DAG size: 1171 [2019-10-07 15:12:59,146 WARN L191 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2019-10-07 15:12:59,955 WARN L191 SmtUtils]: Spent 807.00 ms on a formula simplification that was a NOOP. DAG size: 1173 [2019-10-07 15:13:00,216 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 15:13:00,219 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.generateProof(TraceAbstractionRefinementEngine.java:177) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.executeStrategy(TraceAbstractionRefinementEngine.java:167) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.RefinementEngineFactory.runRefinementEngine(RefinementEngineFactory.java:133) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:436) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:419) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:368) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:332) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:170) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:122) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) Caused by: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε at de.uni_freiburg.informatik.ultimate.lib.sifa.PriorityWorklist.add(PriorityWorklist.java:97) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.lambda$2(DagInterpreter.java:135) at java.lang.Iterable.forEach(Iterable.java:75) at java.util.Collections$UnmodifiableCollection.forEach(Collections.java:1080) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:135) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:104) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.computeTopSummary(TopInputCallSummarizer.java:78) at java.util.HashMap.computeIfAbsent(HashMap.java:1127) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.summarize(TopInputCallSummarizer.java:67) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretCallReturnSummary(DagInterpreter.java:230) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:214) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:197) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:166) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:130) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:104) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.computeTopSummary(TopInputCallSummarizer.java:78) at java.util.HashMap.computeIfAbsent(HashMap.java:1127) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.summarize(TopInputCallSummarizer.java:67) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretCallReturnSummary(DagInterpreter.java:230) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:214) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:197) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:166) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:130) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:104) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.computeTopSummary(TopInputCallSummarizer.java:78) at java.util.HashMap.computeIfAbsent(HashMap.java:1127) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.summarize(TopInputCallSummarizer.java:67) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretCallReturnSummary(DagInterpreter.java:230) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:214) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:197) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:166) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:130) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpretLoisInProcedure(IcfgInterpreter.java:139) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpret(IcfgInterpreter.java:129) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:99) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:99) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:287) ... 21 more [2019-10-07 15:13:00,224 INFO L168 Benchmark]: Toolchain (without parser) took 155129.83 ms. Allocated memory was 140.0 MB in the beginning and 812.6 MB in the end (delta: 672.7 MB). Free memory was 100.8 MB in the beginning and 404.3 MB in the end (delta: -303.5 MB). Peak memory consumption was 369.2 MB. Max. memory is 7.1 GB. [2019-10-07 15:13:00,225 INFO L168 Benchmark]: CDTParser took 1.28 ms. Allocated memory is still 140.0 MB. Free memory is still 121.6 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-10-07 15:13:00,226 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1208.94 ms. Allocated memory was 140.0 MB in the beginning and 207.6 MB in the end (delta: 67.6 MB). Free memory was 100.8 MB in the beginning and 143.2 MB in the end (delta: -42.4 MB). Peak memory consumption was 34.0 MB. Max. memory is 7.1 GB. [2019-10-07 15:13:00,226 INFO L168 Benchmark]: Boogie Preprocessor took 165.08 ms. Allocated memory is still 207.6 MB. Free memory was 143.2 MB in the beginning and 134.2 MB in the end (delta: 8.9 MB). Peak memory consumption was 8.9 MB. Max. memory is 7.1 GB. [2019-10-07 15:13:00,227 INFO L168 Benchmark]: RCFGBuilder took 4420.65 ms. Allocated memory was 207.6 MB in the beginning and 285.7 MB in the end (delta: 78.1 MB). Free memory was 134.2 MB in the beginning and 216.3 MB in the end (delta: -82.1 MB). Peak memory consumption was 127.4 MB. Max. memory is 7.1 GB. [2019-10-07 15:13:00,228 INFO L168 Benchmark]: TraceAbstraction took 149330.78 ms. Allocated memory was 285.7 MB in the beginning and 812.6 MB in the end (delta: 526.9 MB). Free memory was 216.3 MB in the beginning and 404.3 MB in the end (delta: -188.0 MB). Peak memory consumption was 339.0 MB. Max. memory is 7.1 GB. [2019-10-07 15:13:00,231 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.28 ms. Allocated memory is still 140.0 MB. Free memory is still 121.6 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1208.94 ms. Allocated memory was 140.0 MB in the beginning and 207.6 MB in the end (delta: 67.6 MB). Free memory was 100.8 MB in the beginning and 143.2 MB in the end (delta: -42.4 MB). Peak memory consumption was 34.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 165.08 ms. Allocated memory is still 207.6 MB. Free memory was 143.2 MB in the beginning and 134.2 MB in the end (delta: 8.9 MB). Peak memory consumption was 8.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 4420.65 ms. Allocated memory was 207.6 MB in the beginning and 285.7 MB in the end (delta: 78.1 MB). Free memory was 134.2 MB in the beginning and 216.3 MB in the end (delta: -82.1 MB). Peak memory consumption was 127.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 149330.78 ms. Allocated memory was 285.7 MB in the beginning and 812.6 MB in the end (delta: 526.9 MB). Free memory was 216.3 MB in the beginning and 404.3 MB in the end (delta: -188.0 MB). Peak memory consumption was 339.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε: de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:295) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...