java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --traceabstraction.trace.refinement.strategy SIFA_TAIPAN --sifa.abstract.domain CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/product-lines/email_spec27_product28.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-36ac518-m [2019-10-07 14:49:24,129 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-07 14:49:24,132 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-07 14:49:24,151 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-07 14:49:24,152 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-07 14:49:24,154 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-07 14:49:24,156 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-07 14:49:24,165 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-07 14:49:24,167 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-07 14:49:24,168 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-07 14:49:24,169 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-07 14:49:24,170 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-07 14:49:24,170 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-07 14:49:24,171 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-07 14:49:24,172 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-07 14:49:24,173 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-07 14:49:24,174 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-07 14:49:24,175 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-07 14:49:24,176 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-07 14:49:24,178 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-07 14:49:24,179 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-07 14:49:24,180 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-07 14:49:24,181 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-07 14:49:24,182 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-07 14:49:24,184 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-07 14:49:24,184 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-07 14:49:24,185 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-07 14:49:24,185 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-07 14:49:24,186 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-07 14:49:24,187 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-07 14:49:24,187 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-07 14:49:24,188 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-07 14:49:24,188 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-07 14:49:24,189 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-07 14:49:24,190 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-07 14:49:24,190 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-07 14:49:24,191 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-07 14:49:24,191 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-07 14:49:24,191 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-07 14:49:24,192 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-07 14:49:24,193 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-07 14:49:24,194 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 14:49:24,208 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-07 14:49:24,208 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-07 14:49:24,209 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-07 14:49:24,210 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-07 14:49:24,210 INFO L138 SettingsManager]: * Use SBE=true [2019-10-07 14:49:24,210 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-07 14:49:24,210 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-07 14:49:24,210 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-07 14:49:24,211 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-07 14:49:24,211 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-07 14:49:24,211 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-07 14:49:24,211 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-07 14:49:24,211 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-07 14:49:24,212 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-07 14:49:24,212 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-07 14:49:24,212 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-07 14:49:24,212 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-07 14:49:24,212 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-07 14:49:24,213 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-07 14:49:24,213 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-07 14:49:24,213 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-07 14:49:24,213 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 14:49:24,213 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-07 14:49:24,214 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-07 14:49:24,214 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-07 14:49:24,214 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-07 14:49:24,214 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-07 14:49:24,214 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-07 14:49:24,214 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 14:49:24,509 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-07 14:49:24,523 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-07 14:49:24,526 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-07 14:49:24,528 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-07 14:49:24,528 INFO L275 PluginConnector]: CDTParser initialized [2019-10-07 14:49:24,529 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec27_product28.cil.c [2019-10-07 14:49:24,593 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/466e1846a/7c86ce2d5605462ca072915a11a800d7/FLAGd6424c941 [2019-10-07 14:49:25,267 INFO L306 CDTParser]: Found 1 translation units. [2019-10-07 14:49:25,267 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec27_product28.cil.c [2019-10-07 14:49:25,288 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/466e1846a/7c86ce2d5605462ca072915a11a800d7/FLAGd6424c941 [2019-10-07 14:49:25,476 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/466e1846a/7c86ce2d5605462ca072915a11a800d7 [2019-10-07 14:49:25,487 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-07 14:49:25,489 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-07 14:49:25,490 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-07 14:49:25,490 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-07 14:49:25,494 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-07 14:49:25,495 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 02:49:25" (1/1) ... [2019-10-07 14:49:25,498 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a30decc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:49:25, skipping insertion in model container [2019-10-07 14:49:25,498 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 02:49:25" (1/1) ... [2019-10-07 14:49:25,506 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-07 14:49:25,595 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-07 14:49:26,368 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 14:49:26,393 INFO L188 MainTranslator]: Completed pre-run [2019-10-07 14:49:26,557 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 14:49:26,661 INFO L192 MainTranslator]: Completed translation [2019-10-07 14:49:26,662 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:49:26 WrapperNode [2019-10-07 14:49:26,662 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-07 14:49:26,662 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-07 14:49:26,663 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-07 14:49:26,663 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-07 14:49:26,674 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:49:26" (1/1) ... [2019-10-07 14:49:26,674 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:49:26" (1/1) ... [2019-10-07 14:49:26,708 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:49:26" (1/1) ... [2019-10-07 14:49:26,708 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:49:26" (1/1) ... [2019-10-07 14:49:26,767 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:49:26" (1/1) ... [2019-10-07 14:49:26,793 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:49:26" (1/1) ... [2019-10-07 14:49:26,811 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:49:26" (1/1) ... [2019-10-07 14:49:26,844 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-07 14:49:26,844 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-07 14:49:26,845 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-07 14:49:26,845 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-07 14:49:26,849 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:49:26" (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 14:49:26,943 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-07 14:49:26,943 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-07 14:49:26,944 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-07 14:49:26,944 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__VerifyForward_spec__1 [2019-10-07 14:49:26,944 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-07 14:49:26,946 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-07 14:49:26,947 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-07 14:49:26,948 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-07 14:49:26,948 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-07 14:49:26,948 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-07 14:49:26,949 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-07 14:49:26,950 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-07 14:49:26,950 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-07 14:49:26,950 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-07 14:49:26,951 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-07 14:49:26,951 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-07 14:49:26,954 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-07 14:49:26,954 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-07 14:49:26,954 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-07 14:49:26,955 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-07 14:49:26,955 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-07 14:49:26,955 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-07 14:49:26,955 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-07 14:49:26,956 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-07 14:49:26,956 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Encrypt [2019-10-07 14:49:26,956 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Sign [2019-10-07 14:49:26,957 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-07 14:49:26,957 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-07 14:49:26,957 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-07 14:49:26,957 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-07 14:49:26,957 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-07 14:49:26,957 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-07 14:49:26,958 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-07 14:49:26,958 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-07 14:49:26,959 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-07 14:49:26,959 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-07 14:49:26,959 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-07 14:49:26,959 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-07 14:49:26,960 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-07 14:49:26,960 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-07 14:49:26,960 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-07 14:49:26,960 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-07 14:49:26,961 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-07 14:49:26,961 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-07 14:49:26,961 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-07 14:49:26,961 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-07 14:49:26,962 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-07 14:49:26,962 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-07 14:49:26,962 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-07 14:49:26,962 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-07 14:49:26,963 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-07 14:49:26,963 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-07 14:49:26,963 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-07 14:49:26,963 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-07 14:49:26,963 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-07 14:49:26,964 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-07 14:49:26,964 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-07 14:49:26,964 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-07 14:49:26,965 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-07 14:49:26,965 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-07 14:49:26,965 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Encrypt [2019-10-07 14:49:26,965 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-07 14:49:26,966 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-07 14:49:26,966 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-10-07 14:49:26,966 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Verify [2019-10-07 14:49:26,966 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-07 14:49:26,966 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-07 14:49:26,966 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-07 14:49:26,967 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-07 14:49:26,967 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-07 14:49:26,967 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-07 14:49:26,967 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-07 14:49:26,967 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-07 14:49:26,968 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-07 14:49:26,968 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-07 14:49:26,968 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-07 14:49:26,969 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-07 14:49:26,969 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-07 14:49:26,969 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-07 14:49:26,970 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-07 14:49:26,970 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-07 14:49:26,971 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-07 14:49:26,971 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-07 14:49:26,971 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-07 14:49:26,971 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-07 14:49:26,971 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-07 14:49:26,971 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-07 14:49:26,973 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-07 14:49:26,973 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-07 14:49:26,973 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-07 14:49:26,974 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-07 14:49:26,974 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-07 14:49:26,974 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-07 14:49:26,974 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-07 14:49:26,974 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-07 14:49:26,975 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-07 14:49:26,975 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-07 14:49:26,975 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-07 14:49:26,975 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-07 14:49:26,975 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-07 14:49:26,976 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-07 14:49:26,976 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-07 14:49:26,976 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-07 14:49:26,976 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-07 14:49:26,976 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-07 14:49:26,977 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-07 14:49:26,977 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-07 14:49:26,977 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-07 14:49:26,977 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-07 14:49:26,977 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-07 14:49:26,978 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-07 14:49:26,978 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-07 14:49:26,978 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-07 14:49:26,978 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-07 14:49:26,978 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-07 14:49:26,979 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-07 14:49:26,979 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-07 14:49:26,979 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-07 14:49:26,979 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-07 14:49:26,980 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__VerifyForward_spec__1 [2019-10-07 14:49:26,980 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-07 14:49:26,980 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-07 14:49:26,981 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-07 14:49:26,981 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-07 14:49:26,982 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-07 14:49:26,982 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-07 14:49:26,982 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-07 14:49:26,982 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-07 14:49:26,983 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-07 14:49:26,983 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-07 14:49:26,983 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-07 14:49:26,983 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-07 14:49:26,984 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-07 14:49:26,984 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-07 14:49:26,988 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-07 14:49:26,988 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-07 14:49:26,988 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-07 14:49:26,988 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-07 14:49:26,989 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-07 14:49:26,989 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-07 14:49:26,989 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-07 14:49:26,989 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-07 14:49:26,989 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-07 14:49:26,990 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-07 14:49:26,996 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-07 14:49:26,997 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-07 14:49:26,997 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-07 14:49:26,997 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-07 14:49:26,998 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-07 14:49:26,998 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-07 14:49:26,999 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-07 14:49:26,999 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-07 14:49:26,999 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-07 14:49:26,999 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-07 14:49:26,999 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-07 14:49:26,999 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-07 14:49:26,999 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-07 14:49:27,000 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-07 14:49:27,000 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-07 14:49:27,000 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-07 14:49:27,000 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-07 14:49:27,000 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-07 14:49:27,001 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-07 14:49:27,001 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-07 14:49:27,001 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-07 14:49:27,001 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-07 14:49:27,001 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-07 14:49:27,001 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-07 14:49:27,001 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-07 14:49:27,002 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-07 14:49:27,002 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-07 14:49:27,002 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Encrypt [2019-10-07 14:49:27,002 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Sign [2019-10-07 14:49:27,002 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-07 14:49:27,002 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-07 14:49:27,003 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-07 14:49:27,003 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-07 14:49:27,003 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-07 14:49:27,003 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-07 14:49:27,003 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-07 14:49:27,003 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-07 14:49:27,003 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-07 14:49:27,004 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-07 14:49:27,004 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-07 14:49:27,004 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-07 14:49:27,004 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-07 14:49:27,004 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-07 14:49:27,005 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-07 14:49:27,005 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-07 14:49:27,005 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-07 14:49:27,005 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-07 14:49:27,005 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-07 14:49:27,005 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-07 14:49:27,005 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-07 14:49:27,006 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-07 14:49:27,006 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-07 14:49:27,006 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-07 14:49:27,006 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-07 14:49:27,006 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-07 14:49:27,006 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-07 14:49:27,006 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-07 14:49:27,006 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-07 14:49:27,007 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-07 14:49:27,007 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-07 14:49:27,007 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-07 14:49:27,007 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-07 14:49:27,007 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-07 14:49:27,008 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-07 14:49:27,008 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-07 14:49:27,008 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-07 14:49:27,008 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-07 14:49:27,009 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-07 14:49:27,009 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-07 14:49:27,009 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Encrypt [2019-10-07 14:49:27,009 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-10-07 14:49:27,009 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Verify [2019-10-07 14:49:27,009 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-07 14:49:27,009 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-07 14:49:27,009 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-07 14:49:27,010 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-07 14:49:27,010 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-07 14:49:27,010 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-07 14:49:27,010 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-07 14:49:27,010 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-07 14:49:27,010 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-07 14:49:27,010 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-07 14:49:27,010 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-07 14:49:27,011 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-07 14:49:27,011 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-07 14:49:27,011 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-07 14:49:27,011 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-07 14:49:27,011 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-07 14:49:27,011 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-07 14:49:27,011 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-07 14:49:27,012 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-07 14:49:27,012 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-07 14:49:27,012 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-07 14:49:27,012 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-07 14:49:27,012 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-07 14:49:31,882 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-07 14:49:31,882 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-07 14:49:31,884 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 02:49:31 BoogieIcfgContainer [2019-10-07 14:49:31,884 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-07 14:49:31,885 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-07 14:49:31,885 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-07 14:49:31,889 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-07 14:49:31,889 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.10 02:49:25" (1/3) ... [2019-10-07 14:49:31,890 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2dd7d5f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 02:49:31, skipping insertion in model container [2019-10-07 14:49:31,890 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:49:26" (2/3) ... [2019-10-07 14:49:31,891 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2dd7d5f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 02:49:31, skipping insertion in model container [2019-10-07 14:49:31,891 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 02:49:31" (3/3) ... [2019-10-07 14:49:31,893 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec27_product28.cil.c [2019-10-07 14:49:31,903 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-07 14:49:31,918 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-07 14:49:31,931 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-07 14:49:31,979 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-07 14:49:31,979 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-07 14:49:31,979 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-07 14:49:31,980 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-07 14:49:31,980 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-07 14:49:31,980 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-07 14:49:31,980 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-07 14:49:31,980 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-07 14:49:32,021 INFO L276 IsEmpty]: Start isEmpty. Operand 375 states. [2019-10-07 14:49:32,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2019-10-07 14:49:32,043 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:49:32,044 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:49:32,048 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:49:32,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:49:32,056 INFO L82 PathProgramCache]: Analyzing trace with hash 909619424, now seen corresponding path program 1 times [2019-10-07 14:49:32,066 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:49:32,067 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:49:32,070 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:49:32,070 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:49:32,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:49:32,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:49:32,710 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-10-07 14:49:32,711 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:49:32,712 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:49:32,713 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-07 14:49:32,724 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-07 14:49:32,741 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-07 14:49:32,742 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-07 14:49:32,745 INFO L87 Difference]: Start difference. First operand 375 states. Second operand 2 states. [2019-10-07 14:49:32,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:49:32,808 INFO L93 Difference]: Finished difference Result 527 states and 629 transitions. [2019-10-07 14:49:32,808 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-07 14:49:32,809 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 165 [2019-10-07 14:49:32,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:49:32,833 INFO L225 Difference]: With dead ends: 527 [2019-10-07 14:49:32,834 INFO L226 Difference]: Without dead ends: 335 [2019-10-07 14:49:32,840 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 14:49:32,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 335 states. [2019-10-07 14:49:32,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 335 to 335. [2019-10-07 14:49:32,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 335 states. [2019-10-07 14:49:32,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 335 states to 335 states and 397 transitions. [2019-10-07 14:49:32,978 INFO L78 Accepts]: Start accepts. Automaton has 335 states and 397 transitions. Word has length 165 [2019-10-07 14:49:32,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:49:32,982 INFO L462 AbstractCegarLoop]: Abstraction has 335 states and 397 transitions. [2019-10-07 14:49:32,982 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-07 14:49:32,983 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states and 397 transitions. [2019-10-07 14:49:32,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2019-10-07 14:49:32,996 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:49:32,997 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:49:32,997 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:49:32,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:49:32,998 INFO L82 PathProgramCache]: Analyzing trace with hash -1925166444, now seen corresponding path program 1 times [2019-10-07 14:49:32,999 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:49:32,999 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:49:32,999 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:49:32,999 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:49:32,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:49:33,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:49:33,350 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-10-07 14:49:33,351 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:49:33,351 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:49:33,351 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 14:49:33,353 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 14:49:33,354 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 14:49:33,354 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 14:49:33,354 INFO L87 Difference]: Start difference. First operand 335 states and 397 transitions. Second operand 3 states. [2019-10-07 14:49:33,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:49:33,429 INFO L93 Difference]: Finished difference Result 512 states and 596 transitions. [2019-10-07 14:49:33,431 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 14:49:33,431 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 166 [2019-10-07 14:49:33,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:49:33,443 INFO L225 Difference]: With dead ends: 512 [2019-10-07 14:49:33,443 INFO L226 Difference]: Without dead ends: 337 [2019-10-07 14:49:33,446 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 14:49:33,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337 states. [2019-10-07 14:49:33,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337 to 337. [2019-10-07 14:49:33,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 337 states. [2019-10-07 14:49:33,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 399 transitions. [2019-10-07 14:49:33,493 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 399 transitions. Word has length 166 [2019-10-07 14:49:33,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:49:33,493 INFO L462 AbstractCegarLoop]: Abstraction has 337 states and 399 transitions. [2019-10-07 14:49:33,493 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 14:49:33,494 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 399 transitions. [2019-10-07 14:49:33,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2019-10-07 14:49:33,497 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:49:33,497 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:49:33,497 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:49:33,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:49:33,498 INFO L82 PathProgramCache]: Analyzing trace with hash 1274658591, now seen corresponding path program 1 times [2019-10-07 14:49:33,498 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:49:33,498 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:49:33,499 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:49:33,499 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:49:33,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:49:33,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:49:33,832 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-10-07 14:49:33,832 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:49:33,832 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:49:33,832 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 14:49:33,833 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 14:49:33,834 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 14:49:33,834 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 14:49:33,834 INFO L87 Difference]: Start difference. First operand 337 states and 399 transitions. Second operand 3 states. [2019-10-07 14:49:33,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:49:33,883 INFO L93 Difference]: Finished difference Result 654 states and 802 transitions. [2019-10-07 14:49:33,884 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 14:49:33,884 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 171 [2019-10-07 14:49:33,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:49:33,890 INFO L225 Difference]: With dead ends: 654 [2019-10-07 14:49:33,890 INFO L226 Difference]: Without dead ends: 375 [2019-10-07 14:49:33,893 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 14:49:33,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 375 states. [2019-10-07 14:49:33,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 375 to 374. [2019-10-07 14:49:33,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 374 states. [2019-10-07 14:49:33,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 374 states to 374 states and 464 transitions. [2019-10-07 14:49:33,930 INFO L78 Accepts]: Start accepts. Automaton has 374 states and 464 transitions. Word has length 171 [2019-10-07 14:49:33,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:49:33,930 INFO L462 AbstractCegarLoop]: Abstraction has 374 states and 464 transitions. [2019-10-07 14:49:33,930 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 14:49:33,931 INFO L276 IsEmpty]: Start isEmpty. Operand 374 states and 464 transitions. [2019-10-07 14:49:33,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2019-10-07 14:49:33,937 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:49:33,938 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:49:33,938 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:49:33,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:49:33,939 INFO L82 PathProgramCache]: Analyzing trace with hash 142950709, now seen corresponding path program 1 times [2019-10-07 14:49:33,939 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:49:33,939 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:49:33,940 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:49:33,940 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:49:33,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:49:34,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:49:34,706 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2019-10-07 14:49:34,707 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:49:34,707 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:49:34,707 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2019-10-07 14:49:34,708 INFO L442 AbstractCegarLoop]: Interpolant automaton has 26 states [2019-10-07 14:49:34,709 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2019-10-07 14:49:34,709 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=587, Unknown=0, NotChecked=0, Total=650 [2019-10-07 14:49:34,709 INFO L87 Difference]: Start difference. First operand 374 states and 464 transitions. Second operand 26 states. [2019-10-07 14:49:41,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:49:41,816 INFO L93 Difference]: Finished difference Result 784 states and 966 transitions. [2019-10-07 14:49:41,816 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2019-10-07 14:49:41,816 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 172 [2019-10-07 14:49:41,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:49:41,822 INFO L225 Difference]: With dead ends: 784 [2019-10-07 14:49:41,822 INFO L226 Difference]: Without dead ends: 611 [2019-10-07 14:49:41,827 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 311 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=167, Invalid=1813, Unknown=0, NotChecked=0, Total=1980 [2019-10-07 14:49:41,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 611 states. [2019-10-07 14:49:41,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 611 to 582. [2019-10-07 14:49:41,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 582 states. [2019-10-07 14:49:41,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 582 states to 582 states and 719 transitions. [2019-10-07 14:49:41,891 INFO L78 Accepts]: Start accepts. Automaton has 582 states and 719 transitions. Word has length 172 [2019-10-07 14:49:41,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:49:41,892 INFO L462 AbstractCegarLoop]: Abstraction has 582 states and 719 transitions. [2019-10-07 14:49:41,892 INFO L463 AbstractCegarLoop]: Interpolant automaton has 26 states. [2019-10-07 14:49:41,892 INFO L276 IsEmpty]: Start isEmpty. Operand 582 states and 719 transitions. [2019-10-07 14:49:41,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2019-10-07 14:49:41,895 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:49:41,896 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:49:41,896 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:49:41,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:49:41,897 INFO L82 PathProgramCache]: Analyzing trace with hash 29967552, now seen corresponding path program 1 times [2019-10-07 14:49:41,897 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:49:41,897 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:49:41,897 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:49:41,897 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:49:41,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:49:41,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:49:42,224 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2019-10-07 14:49:42,224 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:49:42,225 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:49:42,225 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-10-07 14:49:42,226 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-07 14:49:42,226 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-07 14:49:42,226 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-10-07 14:49:42,226 INFO L87 Difference]: Start difference. First operand 582 states and 719 transitions. Second operand 10 states. [2019-10-07 14:49:42,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:49:42,330 INFO L93 Difference]: Finished difference Result 937 states and 1143 transitions. [2019-10-07 14:49:42,330 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-07 14:49:42,330 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 176 [2019-10-07 14:49:42,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:49:42,339 INFO L225 Difference]: With dead ends: 937 [2019-10-07 14:49:42,340 INFO L226 Difference]: Without dead ends: 602 [2019-10-07 14:49:42,342 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-10-07 14:49:42,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 602 states. [2019-10-07 14:49:42,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 602 to 586. [2019-10-07 14:49:42,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 586 states. [2019-10-07 14:49:42,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 586 states to 586 states and 722 transitions. [2019-10-07 14:49:42,375 INFO L78 Accepts]: Start accepts. Automaton has 586 states and 722 transitions. Word has length 176 [2019-10-07 14:49:42,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:49:42,377 INFO L462 AbstractCegarLoop]: Abstraction has 586 states and 722 transitions. [2019-10-07 14:49:42,377 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-07 14:49:42,377 INFO L276 IsEmpty]: Start isEmpty. Operand 586 states and 722 transitions. [2019-10-07 14:49:42,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2019-10-07 14:49:42,380 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:49:42,381 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:49:42,381 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:49:42,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:49:42,382 INFO L82 PathProgramCache]: Analyzing trace with hash 757807841, now seen corresponding path program 1 times [2019-10-07 14:49:42,382 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:49:42,382 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:49:42,382 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:49:42,382 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:49:42,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:49:42,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:49:43,278 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2019-10-07 14:49:43,278 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:49:43,278 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:49:43,279 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2019-10-07 14:49:43,279 INFO L442 AbstractCegarLoop]: Interpolant automaton has 29 states [2019-10-07 14:49:43,280 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2019-10-07 14:49:43,280 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=737, Unknown=0, NotChecked=0, Total=812 [2019-10-07 14:49:43,280 INFO L87 Difference]: Start difference. First operand 586 states and 722 transitions. Second operand 29 states. [2019-10-07 14:49:53,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:49:53,168 INFO L93 Difference]: Finished difference Result 1355 states and 1634 transitions. [2019-10-07 14:49:53,168 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2019-10-07 14:49:53,168 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 178 [2019-10-07 14:49:53,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:49:53,181 INFO L225 Difference]: With dead ends: 1355 [2019-10-07 14:49:53,181 INFO L226 Difference]: Without dead ends: 981 [2019-10-07 14:49:53,185 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 479 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=275, Invalid=3031, Unknown=0, NotChecked=0, Total=3306 [2019-10-07 14:49:53,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 981 states. [2019-10-07 14:49:53,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 981 to 964. [2019-10-07 14:49:53,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 964 states. [2019-10-07 14:49:53,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 964 states to 964 states and 1169 transitions. [2019-10-07 14:49:53,244 INFO L78 Accepts]: Start accepts. Automaton has 964 states and 1169 transitions. Word has length 178 [2019-10-07 14:49:53,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:49:53,246 INFO L462 AbstractCegarLoop]: Abstraction has 964 states and 1169 transitions. [2019-10-07 14:49:53,246 INFO L463 AbstractCegarLoop]: Interpolant automaton has 29 states. [2019-10-07 14:49:53,246 INFO L276 IsEmpty]: Start isEmpty. Operand 964 states and 1169 transitions. [2019-10-07 14:49:53,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2019-10-07 14:49:53,250 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:49:53,251 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:49:53,251 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:49:53,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:49:53,252 INFO L82 PathProgramCache]: Analyzing trace with hash -1731604670, now seen corresponding path program 1 times [2019-10-07 14:49:53,252 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:49:53,252 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:49:53,252 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:49:53,253 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:49:53,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:49:53,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:49:53,895 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-07 14:49:53,895 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:49:53,896 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:49:53,896 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2019-10-07 14:49:53,897 INFO L442 AbstractCegarLoop]: Interpolant automaton has 25 states [2019-10-07 14:49:53,898 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2019-10-07 14:49:53,899 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=539, Unknown=0, NotChecked=0, Total=600 [2019-10-07 14:49:53,900 INFO L87 Difference]: Start difference. First operand 964 states and 1169 transitions. Second operand 25 states. [2019-10-07 14:50:03,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:50:03,304 INFO L93 Difference]: Finished difference Result 2159 states and 2560 transitions. [2019-10-07 14:50:03,304 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2019-10-07 14:50:03,304 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 202 [2019-10-07 14:50:03,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:50:03,315 INFO L225 Difference]: With dead ends: 2159 [2019-10-07 14:50:03,315 INFO L226 Difference]: Without dead ends: 1457 [2019-10-07 14:50:03,318 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 460 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=253, Invalid=2399, Unknown=0, NotChecked=0, Total=2652 [2019-10-07 14:50:03,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1457 states. [2019-10-07 14:50:03,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1457 to 1379. [2019-10-07 14:50:03,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1379 states. [2019-10-07 14:50:03,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1379 states to 1379 states and 1659 transitions. [2019-10-07 14:50:03,391 INFO L78 Accepts]: Start accepts. Automaton has 1379 states and 1659 transitions. Word has length 202 [2019-10-07 14:50:03,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:50:03,391 INFO L462 AbstractCegarLoop]: Abstraction has 1379 states and 1659 transitions. [2019-10-07 14:50:03,392 INFO L463 AbstractCegarLoop]: Interpolant automaton has 25 states. [2019-10-07 14:50:03,392 INFO L276 IsEmpty]: Start isEmpty. Operand 1379 states and 1659 transitions. [2019-10-07 14:50:03,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2019-10-07 14:50:03,397 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:50:03,397 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:50:03,398 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:50:03,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:50:03,398 INFO L82 PathProgramCache]: Analyzing trace with hash -129881784, now seen corresponding path program 1 times [2019-10-07 14:50:03,398 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:50:03,399 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:50:03,399 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:50:03,399 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:50:03,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:50:03,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:50:04,620 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2019-10-07 14:50:04,621 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:50:04,621 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:50:04,621 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 14:50:05,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:50:05,192 INFO L256 TraceCheckSpWp]: Trace formula consists of 2714 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-07 14:50:05,211 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:50:05,357 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2019-10-07 14:50:05,358 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:50:05,727 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2019-10-07 14:50:05,728 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2019-10-07 14:50:05,757 INFO L162 IcfgInterpreter]: Started Sifa with 187 locations of interest [2019-10-07 14:50:05,757 INFO L169 IcfgInterpreter]: Building call graph [2019-10-07 14:50:05,765 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-07 14:50:05,774 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-07 14:50:05,774 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-07 14:50:39,284 WARN L191 SmtUtils]: Spent 311.00 ms on a formula simplification that was a NOOP. DAG size: 663 [2019-10-07 14:50:42,930 WARN L191 SmtUtils]: Spent 1.32 s on a formula simplification. DAG size of input: 304 DAG size of output: 247 [2019-10-07 14:50:43,311 WARN L191 SmtUtils]: Spent 371.00 ms on a formula simplification that was a NOOP. DAG size: 704 [2019-10-07 14:50:43,811 WARN L191 SmtUtils]: Spent 495.00 ms on a formula simplification that was a NOOP. DAG size: 704 [2019-10-07 14:50:44,171 WARN L191 SmtUtils]: Spent 356.00 ms on a formula simplification that was a NOOP. DAG size: 704 [2019-10-07 14:50:44,379 WARN L191 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 441 [2019-10-07 14:50:45,085 WARN L191 SmtUtils]: Spent 703.00 ms on a formula simplification that was a NOOP. DAG size: 996 [2019-10-07 14:50:45,708 WARN L191 SmtUtils]: Spent 591.00 ms on a formula simplification that was a NOOP. DAG size: 996 [2019-10-07 14:50:46,351 WARN L191 SmtUtils]: Spent 639.00 ms on a formula simplification that was a NOOP. DAG size: 996 [2019-10-07 14:50:46,495 WARN L191 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 441 [2019-10-07 14:50:47,137 WARN L191 SmtUtils]: Spent 639.00 ms on a formula simplification that was a NOOP. DAG size: 996 [2019-10-07 14:50:48,328 WARN L191 SmtUtils]: Spent 1.17 s on a formula simplification. DAG size of input: 998 DAG size of output: 996 [2019-10-07 14:50:48,918 WARN L191 SmtUtils]: Spent 586.00 ms on a formula simplification that was a NOOP. DAG size: 996 [2019-10-07 14:50:49,104 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 441 [2019-10-07 14:50:49,672 WARN L191 SmtUtils]: Spent 566.00 ms on a formula simplification that was a NOOP. DAG size: 996 [2019-10-07 14:50:50,285 WARN L191 SmtUtils]: Spent 609.00 ms on a formula simplification that was a NOOP. DAG size: 996 [2019-10-07 14:50:50,853 WARN L191 SmtUtils]: Spent 565.00 ms on a formula simplification that was a NOOP. DAG size: 996 [2019-10-07 14:50:50,970 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 441 [2019-10-07 14:50:51,599 WARN L191 SmtUtils]: Spent 628.00 ms on a formula simplification that was a NOOP. DAG size: 996 [2019-10-07 14:50:51,623 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 547 for LOIs [2019-10-07 14:50:52,013 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 631 [2019-10-07 14:50:52,116 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 631 [2019-10-07 14:50:52,239 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 441 [2019-10-07 14:50:52,704 WARN L191 SmtUtils]: Spent 464.00 ms on a formula simplification that was a NOOP. DAG size: 923 [2019-10-07 14:50:52,706 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 1030 for LOIs [2019-10-07 14:50:53,268 WARN L191 SmtUtils]: Spent 561.00 ms on a formula simplification that was a NOOP. DAG size: 1030 [2019-10-07 14:50:53,830 WARN L191 SmtUtils]: Spent 557.00 ms on a formula simplification that was a NOOP. DAG size: 1030 [2019-10-07 14:50:54,079 WARN L191 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 555 [2019-10-07 14:50:54,887 WARN L191 SmtUtils]: Spent 806.00 ms on a formula simplification that was a NOOP. DAG size: 1148 [2019-10-07 14:50:55,543 WARN L191 SmtUtils]: Spent 639.00 ms on a formula simplification that was a NOOP. DAG size: 1036 [2019-10-07 14:50:56,104 WARN L191 SmtUtils]: Spent 557.00 ms on a formula simplification that was a NOOP. DAG size: 1036 [2019-10-07 14:50:56,331 WARN L191 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 561 [2019-10-07 14:50:57,160 WARN L191 SmtUtils]: Spent 827.00 ms on a formula simplification that was a NOOP. DAG size: 1154 [2019-10-07 14:50:57,764 WARN L191 SmtUtils]: Spent 577.00 ms on a formula simplification that was a NOOP. DAG size: 1036 [2019-10-07 14:50:58,324 WARN L191 SmtUtils]: Spent 555.00 ms on a formula simplification that was a NOOP. DAG size: 1036 [2019-10-07 14:50:58,545 WARN L191 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 561 [2019-10-07 14:50:59,341 WARN L191 SmtUtils]: Spent 794.00 ms on a formula simplification that was a NOOP. DAG size: 1154 [2019-10-07 14:51:00,442 WARN L191 SmtUtils]: Spent 1.07 s on a formula simplification. DAG size of input: 1156 DAG size of output: 1036 [2019-10-07 14:51:01,007 WARN L191 SmtUtils]: Spent 562.00 ms on a formula simplification that was a NOOP. DAG size: 1036 [2019-10-07 14:51:01,370 WARN L191 SmtUtils]: Spent 345.00 ms on a formula simplification. DAG size of input: 563 DAG size of output: 561 [2019-10-07 14:51:02,178 WARN L191 SmtUtils]: Spent 806.00 ms on a formula simplification that was a NOOP. DAG size: 1154 [2019-10-07 14:51:02,763 WARN L191 SmtUtils]: Spent 570.00 ms on a formula simplification that was a NOOP. DAG size: 1036 [2019-10-07 14:51:03,335 WARN L191 SmtUtils]: Spent 569.00 ms on a formula simplification that was a NOOP. DAG size: 1036 [2019-10-07 14:51:03,544 WARN L191 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 561 [2019-10-07 14:51:04,348 WARN L191 SmtUtils]: Spent 802.00 ms on a formula simplification that was a NOOP. DAG size: 1154 [2019-10-07 14:51:04,930 WARN L191 SmtUtils]: Spent 578.00 ms on a formula simplification that was a NOOP. DAG size: 1036 [2019-10-07 14:51:05,505 WARN L191 SmtUtils]: Spent 571.00 ms on a formula simplification that was a NOOP. DAG size: 1036 [2019-10-07 14:51:05,693 WARN L191 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 561 [2019-10-07 14:51:06,494 WARN L191 SmtUtils]: Spent 799.00 ms on a formula simplification that was a NOOP. DAG size: 1154 [2019-10-07 14:51:07,087 WARN L191 SmtUtils]: Spent 590.00 ms on a formula simplification that was a NOOP. DAG size: 1036 [2019-10-07 14:51:07,655 WARN L191 SmtUtils]: Spent 564.00 ms on a formula simplification that was a NOOP. DAG size: 1036 [2019-10-07 14:51:07,845 WARN L191 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 561 [2019-10-07 14:51:08,644 WARN L191 SmtUtils]: Spent 797.00 ms on a formula simplification that was a NOOP. DAG size: 1154 [2019-10-07 14:51:09,214 WARN L191 SmtUtils]: Spent 567.00 ms on a formula simplification that was a NOOP. DAG size: 1036 [2019-10-07 14:51:09,786 WARN L191 SmtUtils]: Spent 568.00 ms on a formula simplification that was a NOOP. DAG size: 1036 [2019-10-07 14:51:09,994 WARN L191 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 561 [2019-10-07 14:51:10,816 WARN L191 SmtUtils]: Spent 820.00 ms on a formula simplification that was a NOOP. DAG size: 1154 [2019-10-07 14:51:11,388 WARN L191 SmtUtils]: Spent 568.00 ms on a formula simplification that was a NOOP. DAG size: 1036 [2019-10-07 14:51:11,956 WARN L191 SmtUtils]: Spent 564.00 ms on a formula simplification that was a NOOP. DAG size: 1036 [2019-10-07 14:51:12,144 WARN L191 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 561 [2019-10-07 14:51:12,944 WARN L191 SmtUtils]: Spent 798.00 ms on a formula simplification that was a NOOP. DAG size: 1154 [2019-10-07 14:51:13,517 WARN L191 SmtUtils]: Spent 569.00 ms on a formula simplification that was a NOOP. DAG size: 1036 [2019-10-07 14:51:14,085 WARN L191 SmtUtils]: Spent 565.00 ms on a formula simplification that was a NOOP. DAG size: 1036 [2019-10-07 14:51:14,272 WARN L191 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 561 [2019-10-07 14:51:15,085 WARN L191 SmtUtils]: Spent 811.00 ms on a formula simplification that was a NOOP. DAG size: 1154 [2019-10-07 14:51:15,654 WARN L191 SmtUtils]: Spent 567.00 ms on a formula simplification that was a NOOP. DAG size: 1036 [2019-10-07 14:51:16,224 WARN L191 SmtUtils]: Spent 567.00 ms on a formula simplification that was a NOOP. DAG size: 1036 [2019-10-07 14:51:16,416 WARN L191 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 561 [2019-10-07 14:51:17,221 WARN L191 SmtUtils]: Spent 803.00 ms on a formula simplification that was a NOOP. DAG size: 1154 [2019-10-07 14:51:17,786 WARN L191 SmtUtils]: Spent 562.00 ms on a formula simplification that was a NOOP. DAG size: 1036 [2019-10-07 14:51:18,376 WARN L191 SmtUtils]: Spent 586.00 ms on a formula simplification that was a NOOP. DAG size: 1036 [2019-10-07 14:51:18,563 WARN L191 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 561 [2019-10-07 14:51:19,365 WARN L191 SmtUtils]: Spent 800.00 ms on a formula simplification that was a NOOP. DAG size: 1154 [2019-10-07 14:51:19,937 WARN L191 SmtUtils]: Spent 569.00 ms on a formula simplification that was a NOOP. DAG size: 1036 [2019-10-07 14:51:20,514 WARN L191 SmtUtils]: Spent 574.00 ms on a formula simplification that was a NOOP. DAG size: 1036 [2019-10-07 14:51:20,702 WARN L191 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 561 [2019-10-07 14:51:21,511 WARN L191 SmtUtils]: Spent 806.00 ms on a formula simplification that was a NOOP. DAG size: 1154 [2019-10-07 14:51:22,362 WARN L191 SmtUtils]: Spent 809.00 ms on a formula simplification that was a NOOP. DAG size: 1154 [2019-10-07 14:51:23,167 WARN L191 SmtUtils]: Spent 802.00 ms on a formula simplification that was a NOOP. DAG size: 1154 [2019-10-07 14:51:23,525 WARN L191 SmtUtils]: Spent 349.00 ms on a formula simplification that was a NOOP. DAG size: 561 [2019-10-07 14:51:24,337 WARN L191 SmtUtils]: Spent 810.00 ms on a formula simplification that was a NOOP. DAG size: 1154 [2019-10-07 14:51:25,786 WARN L191 SmtUtils]: Spent 1.43 s on a formula simplification. DAG size of input: 1156 DAG size of output: 1154 [2019-10-07 14:51:26,585 WARN L191 SmtUtils]: Spent 796.00 ms on a formula simplification that was a NOOP. DAG size: 1154 [2019-10-07 14:51:26,790 WARN L191 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 561 [2019-10-07 14:51:27,588 WARN L191 SmtUtils]: Spent 796.00 ms on a formula simplification that was a NOOP. DAG size: 1154 [2019-10-07 14:51:28,389 WARN L191 SmtUtils]: Spent 798.00 ms on a formula simplification that was a NOOP. DAG size: 1154 [2019-10-07 14:51:29,189 WARN L191 SmtUtils]: Spent 796.00 ms on a formula simplification that was a NOOP. DAG size: 1154 [2019-10-07 14:51:29,376 WARN L191 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 561 [2019-10-07 14:51:30,189 WARN L191 SmtUtils]: Spent 810.00 ms on a formula simplification that was a NOOP. DAG size: 1154 [2019-10-07 14:51:31,048 WARN L191 SmtUtils]: Spent 826.00 ms on a formula simplification that was a NOOP. DAG size: 1158 [2019-10-07 14:51:31,857 WARN L191 SmtUtils]: Spent 805.00 ms on a formula simplification that was a NOOP. DAG size: 1158 [2019-10-07 14:51:32,052 WARN L191 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 14:51:32,863 WARN L191 SmtUtils]: Spent 809.00 ms on a formula simplification that was a NOOP. DAG size: 1158 [2019-10-07 14:51:34,333 WARN L191 SmtUtils]: Spent 1.45 s on a formula simplification. DAG size of input: 1160 DAG size of output: 1156 [2019-10-07 14:51:35,148 WARN L191 SmtUtils]: Spent 812.00 ms on a formula simplification that was a NOOP. DAG size: 1156 [2019-10-07 14:51:35,345 WARN L191 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 14:51:36,169 WARN L191 SmtUtils]: Spent 822.00 ms on a formula simplification that was a NOOP. DAG size: 1158 [2019-10-07 14:51:37,616 WARN L191 SmtUtils]: Spent 1.44 s on a formula simplification. DAG size of input: 1160 DAG size of output: 1156 [2019-10-07 14:51:38,422 WARN L191 SmtUtils]: Spent 803.00 ms on a formula simplification that was a NOOP. DAG size: 1156 [2019-10-07 14:51:38,612 WARN L191 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 14:51:39,421 WARN L191 SmtUtils]: Spent 806.00 ms on a formula simplification that was a NOOP. DAG size: 1158 [2019-10-07 14:51:40,248 WARN L191 SmtUtils]: Spent 820.00 ms on a formula simplification that was a NOOP. DAG size: 1161 [2019-10-07 14:51:41,064 WARN L191 SmtUtils]: Spent 813.00 ms on a formula simplification that was a NOOP. DAG size: 1161 [2019-10-07 14:51:41,257 WARN L191 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 14:51:42,068 WARN L191 SmtUtils]: Spent 809.00 ms on a formula simplification that was a NOOP. DAG size: 1161 [2019-10-07 14:51:42,885 WARN L191 SmtUtils]: Spent 813.00 ms on a formula simplification that was a NOOP. DAG size: 1163 [2019-10-07 14:51:43,712 WARN L191 SmtUtils]: Spent 824.00 ms on a formula simplification that was a NOOP. DAG size: 1163 [2019-10-07 14:51:43,906 WARN L191 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 14:51:44,720 WARN L191 SmtUtils]: Spent 812.00 ms on a formula simplification that was a NOOP. DAG size: 1163 [2019-10-07 14:51:46,408 WARN L191 SmtUtils]: Spent 1.63 s on a formula simplification. DAG size of input: 1156 DAG size of output: 1154 [2019-10-07 14:51:47,211 WARN L191 SmtUtils]: Spent 799.00 ms on a formula simplification that was a NOOP. DAG size: 1154 [2019-10-07 14:51:47,416 WARN L191 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 561 [2019-10-07 14:51:48,218 WARN L191 SmtUtils]: Spent 800.00 ms on a formula simplification that was a NOOP. DAG size: 1154 [2019-10-07 14:51:49,654 WARN L191 SmtUtils]: Spent 1.42 s on a formula simplification. DAG size of input: 1156 DAG size of output: 1154 [2019-10-07 14:51:50,464 WARN L191 SmtUtils]: Spent 807.00 ms on a formula simplification that was a NOOP. DAG size: 1154 [2019-10-07 14:51:50,664 WARN L191 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 561 [2019-10-07 14:51:51,466 WARN L191 SmtUtils]: Spent 800.00 ms on a formula simplification that was a NOOP. DAG size: 1154 [2019-10-07 14:51:52,263 WARN L191 SmtUtils]: Spent 793.00 ms on a formula simplification that was a NOOP. DAG size: 1154 [2019-10-07 14:51:53,064 WARN L191 SmtUtils]: Spent 797.00 ms on a formula simplification that was a NOOP. DAG size: 1154 [2019-10-07 14:51:53,252 WARN L191 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 561 [2019-10-07 14:51:54,059 WARN L191 SmtUtils]: Spent 801.00 ms on a formula simplification that was a NOOP. DAG size: 1154 [2019-10-07 14:51:55,703 WARN L191 SmtUtils]: Spent 1.60 s on a formula simplification. DAG size of input: 1156 DAG size of output: 1154 [2019-10-07 14:51:56,509 WARN L191 SmtUtils]: Spent 801.00 ms on a formula simplification that was a NOOP. DAG size: 1154 [2019-10-07 14:51:56,703 WARN L191 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 561 [2019-10-07 14:51:57,512 WARN L191 SmtUtils]: Spent 807.00 ms on a formula simplification that was a NOOP. DAG size: 1154 [2019-10-07 14:51:58,968 WARN L191 SmtUtils]: Spent 1.45 s on a formula simplification. DAG size of input: 1156 DAG size of output: 1154 [2019-10-07 14:51:59,786 WARN L191 SmtUtils]: Spent 813.00 ms on a formula simplification that was a NOOP. DAG size: 1154 [2019-10-07 14:51:59,982 WARN L191 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 561 [2019-10-07 14:52:00,798 WARN L191 SmtUtils]: Spent 814.00 ms on a formula simplification that was a NOOP. DAG size: 1154 [2019-10-07 14:52:01,602 WARN L191 SmtUtils]: Spent 800.00 ms on a formula simplification that was a NOOP. DAG size: 1154 [2019-10-07 14:52:02,402 WARN L191 SmtUtils]: Spent 797.00 ms on a formula simplification that was a NOOP. DAG size: 1154 [2019-10-07 14:52:02,591 WARN L191 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 561 [2019-10-07 14:52:03,403 WARN L191 SmtUtils]: Spent 809.00 ms on a formula simplification that was a NOOP. DAG size: 1154 [2019-10-07 14:52:04,266 WARN L191 SmtUtils]: Spent 832.00 ms on a formula simplification that was a NOOP. DAG size: 1158 [2019-10-07 14:52:05,096 WARN L191 SmtUtils]: Spent 826.00 ms on a formula simplification that was a NOOP. DAG size: 1158 [2019-10-07 14:52:05,294 WARN L191 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 14:52:06,120 WARN L191 SmtUtils]: Spent 824.00 ms on a formula simplification that was a NOOP. DAG size: 1158 [2019-10-07 14:52:07,843 WARN L191 SmtUtils]: Spent 1.70 s on a formula simplification. DAG size of input: 1160 DAG size of output: 1158 [2019-10-07 14:52:08,663 WARN L191 SmtUtils]: Spent 817.00 ms on a formula simplification that was a NOOP. DAG size: 1158 [2019-10-07 14:52:08,872 WARN L191 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 14:52:09,696 WARN L191 SmtUtils]: Spent 822.00 ms on a formula simplification that was a NOOP. DAG size: 1158 [2019-10-07 14:52:10,522 WARN L191 SmtUtils]: Spent 821.00 ms on a formula simplification that was a NOOP. DAG size: 1158 [2019-10-07 14:52:11,357 WARN L191 SmtUtils]: Spent 831.00 ms on a formula simplification that was a NOOP. DAG size: 1158 [2019-10-07 14:52:11,548 WARN L191 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 14:52:12,369 WARN L191 SmtUtils]: Spent 818.00 ms on a formula simplification that was a NOOP. DAG size: 1158 [2019-10-07 14:52:13,748 WARN L191 SmtUtils]: Spent 1.37 s on a formula simplification. DAG size of input: 1163 DAG size of output: 1156 [2019-10-07 14:52:14,558 WARN L191 SmtUtils]: Spent 806.00 ms on a formula simplification that was a NOOP. DAG size: 1156 [2019-10-07 14:52:14,761 WARN L191 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 14:52:15,607 WARN L191 SmtUtils]: Spent 844.00 ms on a formula simplification that was a NOOP. DAG size: 1158 [2019-10-07 14:52:17,001 WARN L191 SmtUtils]: Spent 1.39 s on a formula simplification. DAG size of input: 1165 DAG size of output: 1158 [2019-10-07 14:52:17,826 WARN L191 SmtUtils]: Spent 822.00 ms on a formula simplification that was a NOOP. DAG size: 1158 [2019-10-07 14:52:18,023 WARN L191 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 14:52:18,834 WARN L191 SmtUtils]: Spent 810.00 ms on a formula simplification that was a NOOP. DAG size: 1160 [2019-10-07 14:52:19,098 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:52:19,100 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 14:52:19,113 INFO L168 Benchmark]: Toolchain (without parser) took 173622.38 ms. Allocated memory was 144.2 MB in the beginning and 717.2 MB in the end (delta: 573.0 MB). Free memory was 99.0 MB in the beginning and 447.3 MB in the end (delta: -348.3 MB). Peak memory consumption was 224.7 MB. Max. memory is 7.1 GB. [2019-10-07 14:52:19,114 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 144.2 MB. Free memory was 120.6 MB in the beginning and 120.4 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2019-10-07 14:52:19,115 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1172.32 ms. Allocated memory was 144.2 MB in the beginning and 202.9 MB in the end (delta: 58.7 MB). Free memory was 98.8 MB in the beginning and 135.3 MB in the end (delta: -36.5 MB). Peak memory consumption was 30.2 MB. Max. memory is 7.1 GB. [2019-10-07 14:52:19,116 INFO L168 Benchmark]: Boogie Preprocessor took 181.45 ms. Allocated memory is still 202.9 MB. Free memory was 135.3 MB in the beginning and 126.6 MB in the end (delta: 8.7 MB). Peak memory consumption was 8.7 MB. Max. memory is 7.1 GB. [2019-10-07 14:52:19,116 INFO L168 Benchmark]: RCFGBuilder took 5039.85 ms. Allocated memory was 202.9 MB in the beginning and 308.3 MB in the end (delta: 105.4 MB). Free memory was 126.6 MB in the beginning and 108.9 MB in the end (delta: 17.7 MB). Peak memory consumption was 123.1 MB. Max. memory is 7.1 GB. [2019-10-07 14:52:19,117 INFO L168 Benchmark]: TraceAbstraction took 167224.00 ms. Allocated memory was 308.3 MB in the beginning and 717.2 MB in the end (delta: 408.9 MB). Free memory was 108.9 MB in the beginning and 447.3 MB in the end (delta: -338.4 MB). Peak memory consumption was 70.6 MB. Max. memory is 7.1 GB. [2019-10-07 14:52:19,123 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 144.2 MB. Free memory was 120.6 MB in the beginning and 120.4 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1172.32 ms. Allocated memory was 144.2 MB in the beginning and 202.9 MB in the end (delta: 58.7 MB). Free memory was 98.8 MB in the beginning and 135.3 MB in the end (delta: -36.5 MB). Peak memory consumption was 30.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 181.45 ms. Allocated memory is still 202.9 MB. Free memory was 135.3 MB in the beginning and 126.6 MB in the end (delta: 8.7 MB). Peak memory consumption was 8.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 5039.85 ms. Allocated memory was 202.9 MB in the beginning and 308.3 MB in the end (delta: 105.4 MB). Free memory was 126.6 MB in the beginning and 108.9 MB in the end (delta: 17.7 MB). Peak memory consumption was 123.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 167224.00 ms. Allocated memory was 308.3 MB in the beginning and 717.2 MB in the end (delta: 408.9 MB). Free memory was 108.9 MB in the beginning and 447.3 MB in the end (delta: -338.4 MB). Peak memory consumption was 70.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε: de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:295) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...